Declaration Of Parameters - Siemens SIMATIC S7-1500 Manual

Parameters of the reference channel
You cannot configure the reference channel with GSD file. You have to transfer the
reference channel to the module with data record 8.
If you want to change the default settings, you have to transfer the parameters to the module
with data record 8, see chapter Parameter assignment and structure of the parameter data
records (Page 51).
The diagnostics "Common mode error" and "Reference channel error" cannot be configured
for the reference channel.
4.3

Declaration of parameters

Missing supply voltage L+
Enabling of the diagnostics, with missing or too little supply voltage L+.
Overflow
Enabling of the diagnostics if the measured value violates the high limit.
Underflow
Enabling of the diagnostics when the measured value violates the low limit.
Common mode error
Enabling of diagnostics if the valid common mode voltage is exceeded.
Enable the Common mode error diagnostics when 2WMT is connected, for example, to
check for a short circuit to M
diagnostics, disable the parameter.
Reference channel error
● Enable diagnostics for an error at the temperature compensation channel, e.g. wire
break.
● Dynamic reference temperature compensation type is configured and no reference
temperature has been transferred to the module yet.
Wire break
Enabling of the diagnostics if the module has no current flow or the current is too weak for
the measurement at the corresponding configured input or the applied voltage is too low.
Analog input module AI 8xU/I/RTD/TC ST (6ES7531-7KF00-0AB0)
Manual, 09/2016, A5E03484864-AD
or a wire break. If you do not need the Common mode error
ANA
Parameters/address space
4.3 Declaration of parameters
27