HA_CS31_DIAG_VIA_CM574 - HA Diagnosis FB for CM574-RS

Function block HA_CS31_DIAG_VIA_CM574

General Information

Available as of PLC runtime system	V2.3 and above
Included in library	HA_CS31_AC500_V23.lib (V2.4) and above
Type	Function Block with historical values.

This function block will work only on the CPU and in combination with an enabled HA_CS31_DIAG_ON_CM574 in CM574-RS program. HA_CS31_DIAG_VIA_CM574 reads the status byte and writes the control byte of all CI590-CS31-HA connected on CM574-RS COM with relevant diagnosis. This is a mandatory function block for CM574-RS CS31 Bus to work.

This function block has to be called separately for each CM574-RS CS31 line (number of CM574-RS CS31 = number of HA_CS31_DIAG_ON_CM574).

• Input Description
• Output Description
• Function Block Call in ST