Parameter
Range of values
Default
Applicability
4 AI RTD
4 AI TC
Diagnostics short-cir‐
cuit
2
---
● enabled
● disabled
enabled
Channel
---
Reference junction
● None
● Yes
● RTD
None
Channel
---
Reference junction
number
● 1
● 2
● Internal
1
Channel
Smoothing
● None
● Low
● Average
● Strong
None
Channel
High limit
Lower to upper limit value of the
over-range (SIMATIC S7)
High limit
Channel
Low limit
Lower to upper limit value of the
over-range (SIMATIC S7)
Low limit
Channel
1
Relates to the "High limit" and "Low limit" parameters
2
Underflow is not indicated if short-circuit diagnostics is enabled.
13.11.3
Parameters for analog electronics module 4AO I HART
Configuration with STEP 7 Version 5.3 Service Pack 1 or higher, and current HW update
For a description, refer to the online help for STEP 7.
Configuration with GSD file
For the 4AO I HART analog electronic module, there are various configurations that you can
select using the following entries in the hardware catalog of the project engineering software:
● Configuration "4AO I HART":
Analog values are output in S7 format.
● Configurations "4AO I +x":
Analog values are output in S7 format. In addition, up to four IEEE tags (master or auxiliary
tag) are available in IEEE 754 format. You define the number of IEEE tags (1 to 4) in the
configuration data:
– ...I +1
– ...I +2
– ...I +3
– ...I +4
Analog electronic modules
13.11 Parameters of the analog electronic modules
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
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