1Description
I/O extension module, 4 temperature inputs (Pt100)
SATEL-LP-PT100
© PHOENIX CONTACT
Data sheet
The I/O extension module can be used in conjunction with
SATEL-LP wireless modules. In a station structure, you can
connect up to 32 I/O extension modules to a wireless
module via the DIN rail connector.
The I/O extension module is used for processing four Pt100
input signals.
Features
Easy and tool-free I/O mapping via thumb wheel on the
front
Modular design via DIN rail connector (hot-swap
capable)
Channel-to-channel electrical isolation
–Four Pt100 inputs (-50°C...+250°C)
International approvals
Installation in Ex zone2
WARNING: Explosion hazard when used in potentially explosive areas
The device is a category3 item of electrical equipment. Follow the instructions provided here during
installation and observe the safety notes.
Make sure you always use the latest documentation.
It can be downloaded from the product at www.satel.com
.
106934_en_01
2016-12-07
SATEL-LP-PT100
106934_en_01 SATEL 2 / 16
2Table of contents
1 Description .............................................................................................................................. 1
2 Table of contents..................................................................................................................... 2
3 Ordering data .......................................................................................................................... 3
4 Technical data ......................................................................................................................... 3
5 Safety regulations and installation notes.................................................................................. 6
5.1 Installation notes ................................................................................................................. 6
5.2 Installation in Zone 2............................................................................................................. 7
5.3 UL Notes ........................................................................................................................... 7
6 Installation ............................................................................................................................... 8
6.1 Structure ........................................................................................................................... 8
6.2 Basic circuit diagram ............................................................................................................ 8
6.3 I/O MAP address in the SATEL-LP wireless system...................................................................... 9
6.4 Network applications (operating mode) ..................................................................................... 9
6.5 Display and diagnostic elements ........................................................................................... 10
6.6 Temperature input (Pt100) .................................................................................................. 10
6.7 Mounting and removing....................................................................................................... 11
6.8 Connecting cables ............................................................................................................. 12
6.9 Connecting the sensors....................................................................................................... 13
7 Process data.......................................................................................................................... 16
8 Error codes and formats for Pt100 values............................................................................. 16
SATEL-LP-PT100
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Description Ty pe Order No. Pcs./Pkt.
Temperature I/O extension module with 4 PT100 inputs
(-50...+250°C), with screw connection, including DIN rail
connector
SATEL-LP-PT100 YI0108 1
3Ordering data
Accessories Ty pe Order No. Pcs./Pkt.
2400 MHz wireless transceiver with RS-232, RS-485
2-wire interface, expandable with I/O extension modules,
with screw connection, antenna connection: RSMA
(female), including DIN rail connector, without antenna
SATEL-LP24 YM0424 1
868 MHz wireless transceiver with RS-232, RS-485 2-wire
interface, expandable with I/O extension modules, with
screw connection, antenna connection:RSMA (female),
including DIN rail connector, without antenna.
SATEL-LP8 YM0408 1
Bidirectional, 900 MHz transceiver for wireless
transmission of serial and I/O data
SATEL-LP9 YM0409 1
Multipoint multiplexer for RS-485 bus system, can be
extended with I/O extension modules. Can be used as
Modbus/RTU bus coupler or combined with SATEL-LP
wireless system, screw connection. Up to 99stations,
including DIN rail connector
SATEL-LP-RS485 YI0109 1
Analog I/O extension module with 4 analog current/
voltage outputs (0/4 mA ... 20 mA, 0...10 V), with screw
connection, incl. DIN rail connector
SATEL-LP-AO4 YI0104 1
4 Technical data
Dimensions
Dimensions W/H/D 17.5 mm / 99 mm / 114.5 mm
General data
Overvoltage category II
Mounting position any, on standard DIN rail NS 35 in accordance with EN 60715
Degree of protection IP20
Degree of pollution 2
Type of housing PA 6.6-FR, black
Flammability rating according to UL 94 V0
SATEL-LP-PT100
106934_en_01 SATEL 4 / 16
MTTF (mean time to failure) Telcordia standard,
25°C temperature, 21% operating cycle
(5 days a week, 8 hours a day)
1249 Years
MTTF (mean time to failure) Telcordia standard,
40°C temperature, 34.25% operating cycle
(5 days a week, 12 hours a day)
506 Years
MTTF (mean time to failure) Telcordia standard,
temperature 40°C, operating cycle 100%
(7 days a week, 24 hours a day)
194 Years
General data
Supply
Supply voltage range 19.2 V DC ... 30.5 V DC (DIN rail connector)
Max. current consumption 38 mA (At 24 V DC, at 25°C)
Transient surge protection Yes
Pt100 input
Number of inputs 4
Sensor input current 1 mA (constant)
Temperature measuring range -50 °C ... 250 °C
Connection method 2, 3-wire
Max. permissible overall conductor resistance 25
Process data channel 16 Bit (per channel)
Electrical isolation
Pt 100 inputs 50 V (Rated insulation voltage (in each case between the
Pt 100 inputs / TBUS supply, reinforced insulation in
accordance with EN61010))
Neighboring devices 300 V (Rated insulation voltage (to adjacent devices, basic
insulation in accordance with EN 61010))
Te s t vo l t a g e
Pt 100 1.5 kV AC (50 Hz, 1 min.)
Connection data
Connection method Screw connection
Conductor cross section, solid 0.2 mm² ... 2.5 mm²
Conductor cross section, flexible 0.2 mm² ... 2.5 mm²
Conductor cross section AWG/kcmil 24 ... 14
Stripping length 7 mm
Tightening torque 0.6 Nm
Status indication
Status display Green LED (supply voltage, PWR)
Green LED (bus communication, DAT)
Red LED (periphery error, ERR)
SATEL-LP-PT100
106934_en_01 SATEL 5 / 16
Ambient conditions
Ambient temperature (operation) -40 °C ... 70 °C
-40 °F ... 158 °F
Ambient temperature (storage/transport) -40 °C ... 85 °C
-40 °F ... 185 °F
Permissible humidity (operation) 20 % ... 85 %
Permissible humidity (storage/transport) 20 % ... 85 %
Altitude 2000 m
Vibration (operation) in accordance with IEC 60068-2-6: 5g, 10 Hz ... 150 Hz
Shock 16g, 11 ms
Certification
Conformance CE-compliant
ATEX
Please follow the special installation instructions in the
documentation!
II 3 G Ex nA IIC T4 Gc (IBExU16ATEXB019 X)
IECEx Ex nA IIC T4 Gc (IECExIBE16.0030X)
UL, USA/Canada UL 508 Listed
Class I, Div. 2, Groups A, B, C, D T4A
Class I, Zone 2, IIC T4
Conformance
EMC directive 2014/30/EU EN 61000-6-2; EN 61000-6-4
Ex directive (ATEX) EN 60079-0; EN 60079-15
Tolerances influenced by electromagnetic interference
Type of electromagnetic interference Ty p i c a l d ev i a t i o n o f t h e m e asuring range final value
(current input)
-RelativeAbsolute
Electromagnetic fields according to EN 61000-4-3/
IEC 61000-4-3
< ±0.35% ±0.6 °C
Conducted interference according to EN 61000-4-6/
IEC 61000-4-6
< ±0.1 % ±0.3 °C
Fast transients (burst) according to EN 61000-4-4/
IEC 61000-4-4
< ±0.1 % ±0.3 °C
SATEL-LP-PT100
106934_en_01 SATEL 6 / 16
5 Safety regulations and installation
notes
5.1 Installation notes
The category3 device is designed for installation in
zone2 potentially explosive areas. It meets the
requirements of EN60079-0:2012+A11:2013 and
EN60079-15:2010.
Installation, operation, and maintenance may only be
carried out by qualified electricians. Follow the
installation instructions as described.
When installing and operating the device, the
applicable regulations and safety directives (including
national safety directives), as well as general technical
regulations, must be observed. The technical data is
provided in the package slip and on the certificates
(conformity assessment, additional approvals where
applicable).
The device must not be opened or modified. Do not
repair the device yourself, replace it with an equivalent
device. Repairs may only be carried out by the
manufacturer. The manufacturer is not liable for
damage resulting from violation.
The IP20 protection (IEC 60529/EN 60529) of the
device is intended for use in a clean and dry
environment. The device must not be subject to
mechanical strain and/or thermal loads, which exceed
the limits described.
To protect the device against mechanical or electrical
damage, install it in a suitable housing with appropriate
degree of protection as per IEC60529.
The device complies with the EMC regulations for
industrial areas (EMC classA). When using the device
in residential areas, it may cause radio interference.
The device is not designed for use in atmospheres with
a danger of dust explosions.
If dust is present, it is necessary to install into a suitable
approved housing, whereby the surface temperature of
the housing must be taken into consideration.
WARNING: Risk of electric shock
Provide a switch/circuit breaker close to
the device, which is labeled as the
disconnect device for this device or the
entire control cabinet.
Disconnect the device from all power
sources during maintenance work and
configuration (the device can remain
connected to SELV or PELV circuits).
The housing of the device provides a
basic insulation against the neighboring
devices, for 300 V eff. If several devices
are installed next to each other, this has
to be taken into account, and additional
insulation has to be installed if necessary.
If the neighboring device is equipped with
basic insulation, no additional insulation
is necessary.
WARNING:
Observe the following safety notes when
using the device.
SATEL-LP-PT100
106934_en_01 SATEL 7 / 16
5.2 Installation in Zone 2
Observe the specified conditions for use in potentially
explosive areas! Install the device in a suitable
approved housing (with a minimum of IP54 protection)
that meets the requirements of EN 60079-15. Observe
the requirements of EN 60079-14.
In zone2, only connect devices to the supply and signal
circuits that are suitable for operation in the Ex zone 2
and the conditions at the installation location.
In potentially explosive areas, terminals may only be
snapped onto or off the DIN rail connector and wires
may only be connected or disconnected when the
power is switched off.
The switches of the device that can be accessed may
only be actuated when the power supply to the device is
disconnected.
The device must be stopped and immediately removed
from the Ex area if it is damaged, was subject to an
impermissible load, stored incorrectly or if it
malfunctions.
5.3 UL Notes
WARNING: Explosion hazard when used
in potentially explosive areas
Please make sure that the following notes and
instructions are observed.
INDUSTRIAL CONTROL EQUIPMENT FOR
HAZARDOUS LOCATIONS 45FP
A This equipment is suitable for use in ClassI, Zone2,
IIC T4 and ClassI, Division2, Groups A, B, C,D T4A
hazardous locations or non-hazardous locations only.
B WARNING - EXPLOSION HAZARD - DO NOT
DISCONNECT EQUIPMENT UNLESS POWER HAS
BEEN SWITCHED OFF OR THE AREA IS KNOWN
TO BE NON-HAZARDOUS.
C WARNING - EXPLOSION HAZARD -
SUBSTITUTION OF COMPONENTS MAY IMPAIR
SUITABILITY FOR CLASS 1, DIVISION 2.
D These devices are open-type devices that are to be
installed in an enclosure suitable for the environment
that is only accessible with the use of a tool.
E WARNING - Exposure to some chemicals may
degrade the sealing properties of materials used in
relays within this device.
SATEL-LP-PT100
106934_en_01 SATEL 8 / 16
6 Installation
6.1 Structure
Figure 1 Function elements
6.2 Basic circuit diagram
Figure 2 Basic circuit diagram
NOTE: electrostatic discharge!
The device contains components that can be
damaged or destroyed by electrostatic
discharge. When handling the device,
observe the necessary safety precautions
against electrostatic discharge (ESD)
according to EN 61340-5-1 and
IEC 61340-5-1.
Pos. Designation
1Pt100 input 2 for 2- and 3-wire sensors
2Pt100 input 1 for 2- and 3-wire sensors
3 White thumbwheel for setting the I/O-MAP address
4 Connection option for DIN rail connector
5DIN rail
6 Metal foot catch for DIN rail fixing
7Pt100 input 3 for 2- and 3-wire sensors
8Pt100 input 4 for 2- and 3-wire sensors
9 ERR status LED, red (communication error)
10 DAT status LED, green (bus communication)
11 PWR status LED, green (supply voltage)
IO-MAP
PW
R
DAT
ERR
8
8
+I
1
+I
2
-U
1
-U
2
-I
1
-I
2
I
3
I
4
-U
3
-U
4
-I
3
-I
4
+I
1
+I
2
-U
1
-U
2
-I
1
-I
2
1
2
3
4
6
8
11
10
9
7
5
2.1
2.3
+I
1
-I
1
3-wire
2.2
-U
1
µC
2.1
2.2
2.3
3.1
3.2
3.3
5.1
5.2
5.3
4.1
4.2
4.3
IO-MAP
0
1
DC
DC
IFS
IFS
A
D
1mA
A
D
1mA
A
D
1mA
A
D
1mA
-I2
-U2
+I2
+I1
-U1
-I1
+I3
-U3
-I3
+I4
-U4
-I4
2.1
2.3
+I
1
-I
1
2.2
+I
1
2-wire
SATEL-LP-PT100
106934_en_01 SATEL 9 / 16
6.3 I/O MAP address in the SATEL-LP wireless
system
Figure 3 Thumb wheel
Use the thumbwheel to set the I/O-MAP address. The
extension module in the SATEL-LP wireless system is
addressed using the I/O-MAP address.
On the entire wireless network, addresses 1 to 99 (I/O MAP)
(maximum) may be assigned for the I/O extension modules.
6.4 Network applications (operating mode)
You can set the network application of the wireless module
with the SATEL-LP-CONF software. All SATEL-LP wireless
modules are set to I/O data mode (wire in/wire out) by
default.
Wireless module in I/O data mode
The input device must be provided with the same I/O MAP
address as the assigned output device at the other wireless
station (I/O mapping).
Only the SATEL-LP-AO4 module can be assigned to the
SATEL-LP-PT100 module.
The Pt100 inputs, T1...T4, can be configured to the analog
outputs I1/U1...I4/U4 of the SATEL-LP-AO4 extension
module.
Wireless module in PLC/Modbus RTU mode
The I/O MAP address of an input module may only appear
once in the network.
The input data is saved in a Modbus memory map in the
SATEL-LP master wireless module. You can read or write
the process data via the serial interface of the master
wireless module (RAD-ID=01) using the Modbus RTU
commands (see Section7).
The I/O MAP address of an input module may
only appear once in the network.
Thumbwheel Description
01 - 99 I/O MAP address
00 Delivery state
**,1*-9* Setting not permitted
*1-*9 Setting not permitted
PWR
DAT
ERR
0
ANT
IO-MAP
PWR
DAT
ERR
2
2
+I
1
DAT
-U
1
-I
1
-U
2
-I
2
+I
2
-U
1
-I
1
-U
2
-I
2
+I
2
+I
1
Example: I/O MAP address
SATEL-LP-PT100 02
SATEL-LP-AO4 02
Pt100 input Analog output
-50°C 0mA or 0V
+250°C 20mA or 10V
SATEL-LP-PT100
106934_en_01 SATEL 10 / 16
6.5 Display and diagnostic elements
The I/O extension module uses a total of three LEDs to
indicate the operating states.
Figure 4 Display and diagnostic elements
6.6 Temperature input (Pt100)
The Pt100 inputs of the extension module can process
temperatures from -50°C...+250°C.
All the inputs are electrically isolated from one another, from
the supply voltage (via bus foot), and from other electronic
components.
Pt100 resistance thermometers can be connected to the
SATEL-LP-PT100 I/O extension module. The thermometers
change their resistance depending on the temperature. The
Pt100 input signals are acquired by the SATEL-LP-PT100
and can be mapped to proportional, analog voltage or
current signals of the SATEL-LP-AO4 output module. Thus,
conclusions can be made about the temperature via the
standard analog signal.
1°C 66.66μA
Figure 5 Current strength [mA] depending on the
temperature [°C]
PWR LED
The green PWR LED indicates the supply voltage status.
OFF No supply voltage
ON Supply voltage OK
DAT LED
The green DAT LED indicates the bus communication
status.
OFF No communication
Flashing Configuration and addressing mode
ON Cyclic data communication
ERR LED
The red ERR LED indicates the error status, e.g.,no
corresponding output module found (e.g., incorrect
addressing).
OFF No error
Flashing Slow
(1.4Hz)
I/O-MAP address changed
Fast
(2.8Hz)
No bus communication
ON Critical internal error
PWR
DAT
ERR
0
ANT
IO-MAP
PWR
DAT
ERR
2
2
+I
1
DAT
-U
1
-I
1
-U
2
-I
2
+I
2
-U
1
-I
1
-U
2
-I
2
+I
2
+I
1
0
4
8
12
16
20
T [°C]
I [mA]
-50 0 50 100 150 200 250
SATEL-LP-PT100
106934_en_01 SATEL 11 / 16
6.7 Mounting and removing
Connection station with I/O extension modules
Up to 32different I/O extension modules can be connected
to every wireless module via the DIN rail connector (see
accessories). Data is transmitted and power is supplied to
the I/O extension modules via the bus foot.
Figure 6 SATEL-LP connection station with up to
32I/O extension modules
Assembly
Figure 7 Mounting and removing
When using the device in a connection station, use the
17.5 mm wide DIN rail connector supplied. Only use the DIN
rail connector in connection with 24 V DC devices.
Connect the DIN rail connectors together for a
connection station.
Push the connected DIN rail connectors into the DIN
rail.
Place the device onto the DIN rail from above. Ensure
the device and DIN rail connector are aligned correctly.
Holding the device by the housing cover, carefully push
the device towards the mounting surface so that the
device bus connector is securely fixed onto the DIN rail
connector.
Once the snap-on foot has been audibly snapped onto
the DIN rail, check that it is fixed securely. The device is
only mechanically secured via the DIN rail.
Connect the desired number of I/O extension modules
to the wireless module via the DIN rail connector.
In order to meet the requirements for the protection
class, install the device in suitable housing.
During startup, check that the device is operating,
wired, and marked correctly.
Removing
Use a suitable screwdriver to release the locking
mechanism on the snap-on foot of the device.
Hold onto the device by the housing cover and carefully
tilt it upwards.
Carefully lift the device off the DIN rail connector and the
DIN rail.
Only mount the I/O extension modules to the
right of the wireless module.
RAD-ID
SPORT
PWR
DAT
ERR
RX TX
0
1
Reset
D(A)
D(B)
RX
CO
1
TX
CO
2
GND
NC
1
+24 V
RSSI+
0V
ANT
RSSI-
RAD-2400-IFS
RAD-ID
SPORT
PWR
DAT
ERR
RX TX
0
1
Reset
D(A)
D(B)
RX
CO
1
TX
CO
2
GND
NC
1
+24 V
RSSI+
0V
ANT
RSSI-
IO-MAP
PWR
DAT
ERR
0
1
IO-MAP
PWR
DAT
ERR
0
2
IO-MAP
PWR
DAT
ERR
0
3
IO-MAP
PWR
DAT
ERR
0
4
IO-MAP
PWR
DAT
ERR
0
5
IO-MAP
PWR
DAT
ERR
0
6
IO-MAP
PWR
DAT
ERR
3
1
IO-MAP
PWR
DAT
ERR
3
2
DI1
DI2
DO1
DO3
DI1
DI2
DO1
DO2
DI1
DI2
DI3
DI4
DO1
DO2
DO3
DO4
DI4
DI3
DI2
DI1 DO1
DO2
DO3
DO4
A
B
C
DE
Outside the Ex area, module extension or
module replacement is also possible during
operation.
SATEL-LP-PT100
106934_en_01 SATEL 12 / 16
6.8 Connecting cables
Figure 8 Connecting cables
Crimp ferrules to the wires.
Permissible cable cross section: 0.2...2.5mm².
Insert the wire with ferrule into the corresponding
connection terminal block.
Use a screwdriver to tighten the screw in the opening
above the connection terminal block.
Tightening torque: 0.6Nm
A
B
8
8
P
W
R
DAT
E
R
R
SATEL-LP-PT100
106934_en_01 SATEL 13 / 16
6.9 Connecting the sensors
You can connect 2-wire or 3-wire sensors to the extension
module. Take into account the measuring errors depending
on the different measuring methods.
2-wire connection method
With 2-wire technology, you need an insertion bridge
between terminals x.2 and x.3.
For short distances (<10m).
Connect the Pt100 sensor to terminals x.1 and x.3.
Bridge the terminals x.2 and x.3.
2-wire connection technology is the most cost-effective
connection method. The temperature-related voltage is not
directly measured at the sensor and is therefore falsified by
the two cable resistances. The measuring errors that occur
may render the entire measurement useless.
Figure 9 2-wire connection technology
Cable resistances R
L1
and R
L2
are
incorporated in the measurement result
directly and falsify the result accordingly.
µC
2.1
2.2
2.3
3.1
3.2
3.3
5.1
5.2
5.3
4.1
4.2
4.3
IO-MAP
0
1
DC
DC
IFS
IFS
A
D
1mA
A
D
1mA
A
D
1mA
A
D
1mA
-I2
-U2
+I2
+I1
-U1
-I1
+I3
-U3
-I3
+I4
-U4
-I4
RL
RL
I+
I–
RTD
ϑ
SATEL-LP-PT100
106934_en_01 SATEL 14 / 16
3-wire connection method
For long distances between the PT 100 sensor and the
extension module. To compensate the wire resistances, all
wire resistances must have exactly the same values (R
L1
=
R
L2
= R
L3
).
Connect the Pt100 sensor to terminals x.1, x.2, and x.3.
With 3-wire connection technology, the temperature-related
voltage is measured several times. Corresponding
calculations additionally reduce the effect of the cable
resistance on the measurement result. The results are
almost as good as those achieved using 4-wire technology.
The cable resistances R
L
at terminals +I and -I must have
the same value. This allows you to subtract the established
cable resistance from the measurement result and to get the
Pt100 platinum resistance value.
Figure 10 3-wire connection method
µC
2.1
2.2
2.3
3.1
3.2
3.3
5.1
5.2
5.3
4.1
4.2
4.3
IO-MAP
0
1
DC
DC
IFS
IFS
A
D
1mA
A
D
1mA
A
D
1mA
A
D
1mA
-I2
-U2
+I2
+I1
-U1
-I1
+I3
-U3
-I3
+I4
-U4
-I4
RL
I+
RTD
ϑ
RL
I–
U–
SATEL-LP-PT100
106934_en_01 SATEL 15 / 16
4-wire connection method
The extension module does not support 4-wire connection
technology.
If you want to use a 4-wire sensor, only connect three of
the four wires.
The fourth wire should be left unwired. Otherwise there
will be a different resistance in the +I and -I cables owing
to the parallel connection of two cable resistances.
Figure 11 4-wire connection technology
µC
2.1
2.2
2.3
3.1
3.2
3.3
5.1
5.2
5.3
4.1
4.2
4.3
IO-MAP
0
1
DC
DC
IFS
IFS
A
D
1mA
A
D
1mA
A
D
1mA
A
D
1mA
-I2
-U2
+I2
+I1
-U1
-I1
+I3
-U3
-I3
+I4
-U4
-I4
RL
I+
(U+)
RTD
ϑ
RL
I–
U–
SATEL-LP-PT100
106934_en_01 16 / 16
Satel Oy • Meriniitynkatu 17, P.O. Box 142 • FI-24101 Salo, Finland
Tel. +358 2 777 7800 • info@satel.com • www.satel.com
7Process data
With the SATEL-LP-CONF software, you can set the
wireless module's network application to “PLC/Modbus
RTU mode”.
You can read or write the process data via the serial
interface of the master wireless module (RAD ID=01) using
Modbus RTU commands.
xx=I/O MAP address set using the white thumbwheel
8 Error codes and formats for Pt100 values
I/O
module
Module
type
Number
of
registers
Address
space
Function
code
SATEL-
LP-PT100
21
hex
06
hex
30xx0...
30xx5
fc04
30xx0 Module type and currentness of data
15 14 13 12 11 10 09 08 07 06 05 04 0 3 0 2 01 00
YModule type
Register values:
Module type If the module type in the register is invalid
or unavailable, then the register value is0
Currentness of
data
Y = Currentness of data, bit8
If the data in the register is not up-to-date,
then the register value is1.
This is the case, forexample, if the
wireless connection or communication
with an input module fails. In this case, the
IN process data is retained in the Modbus
table, but is no longer updated.
30xx1 Reserved
30xx2 Pt100 input1, terminal point 2.x
15 14 13 12 11 10 09 08 07 06 05 04 0 3 0 2 0 1 0 0
T1
30xx3 Pt100 input2, terminal point 3.x
15 14 13 12 11 10 09 08 07 06 05 04 0 3 0 2 0 1 0 0
T2
30xx4 Pt100 input3, terminal point 4.x
15 14 13 12 11 10 09 08 07 06 05 04 0 3 0 2 0 1 0 0
T3
30xx5 Pt100 input4, terminal point 5.x
15 14 13 12 11 10 09 08 07 06 05 04 0 3 0 2 0 1 0 0
T4
30xx6...30xx9 Reserved
Data word Pt100 input SATEL-LP-AO4, analog output
hex dec/error code -50°C ... +250°C 0mA ... 20mA 0 V ... 10 V Possible cause
0000 0 -50°C 0mA 0V
7530 30000 +250°C 20 mA 10V
7F00 32512 +275.12°C 21.67mA 10.84V
8001 Overrange 
8002 Open circuit Sensor wired incorrectly,
measuring line too long,
cable resistance too high
8080 Underrange