Example Of The Configuration Of Reference Junctions - Siemens SIMATIC ET 200S Manual

Analog Electronic Modules
Configuring the reference junction with 2AI TC and interface module
You can set the reference junctions for the 2AI TC electronics modules using the
following parameters:
Table 12-26 Reference Junction Parameters
Parameters
Reference junction slot IM 151
Reference junction
input
Reference junction E0
and reference junction
E1
Reference junction
number

Example of the Configuration of Reference Junctions

• Structure: To simplify the situation, the following figure 12-4 shows only RTD
and TC modules:
Figure 12-4
12-24
Module Value range
none, 2 to 12
(IM151-1 BASIC)
none, 2 to 63
(IM151-1 HIGH
FEATURE)
IM 151-1 STANDARD
IM 151-1FO
STANDARD
IM 151 RTD on channel 0
RTD on channel 1
2AI TC none, RTD
2AI TC 1
Example
Reference
junction
3 5
... ...
Compensation via 2AI RTD modules
Example of the Configuration of Reference Junctions
Description
With this parameter, you can
assign a slot (none, 2 to 12 or 2
to 63) on which the channels for
reference temperature
measurement are situated
(calculating the compensation
value).
With this parameter you specify
the channel (0/1) for reference
temperature measurement
(calculating the compensation
value) for the relevant slot.
With these parameters, you can
enable the use of the reference
junction.
With this parameter, you assign
the reference junction (1)
containing the reference
temperature (compensation
value).
8 11
... ...
ET 200S Distributed I/O System
Slot
...
EWA-4NEB 780602402-12