ABB AC500-S - Page 275

Table 39: FB Name: SF_Antivalent
Name Data Type Initial Value Description, Parameter Values
VAR_INPUT
Activate BOOL FALSE
Ä Table 31 “General Input Parameters”
on page 266
S_ChannelNC BOOL FALSE Variable. NC stands for Normally Closed.
Input for NC connection.
FALSE: NC contact open.
TRUE: NC contact closed.
S_ChannelNO BOOL TRUE Variable. NO stands for Normally Open.
Input for NO connection.
FALSE: NO contact open
TRUE: NO contact closed
DiscrepancyTime TIME T#0ms Constant.
Maximum monitoring time for discrepancy status
of both inputs.
VAR_OUTPUT
Ready BOOL FALSE
Ä Table 32 “General Output Parameters”
on page 267
S_AntivalentOut BOOL FALSE Safety related output
FALSE: Minimum of one input signal "not active"
or status change outside of monitoring time.
TRUE: Both inputs signals "active" and status
change within monitoring time.
Error BOOL FALSE
Ä Table 32 “General Output Parameters”
on page 267
DiagCode WORD 16#0000
Ä Table 32 “General Output Parameters”
on page 267
Notes: "Antivalent" means that during normal operation, the two inputs are in opposite states at the same
time. This is sometimes called "complementary" or "non-equivalent".
Configuration and programming
AC500-S Libraries > SafetyBlocks_PLCopen_AC500_v22.lib
30.03.2017 AC500-S 275