ProSoft Technology MVI46-103M - Manual (Page 43)

Ladder Logic MVI46-103M ♦ SLC Platform
IEC 60870-5-103 Master Communication Module
ProSoft Technology, Inc. Page 43 of 187
September 12, 2006
messages can be accepted. More ladder logic is required if this data is to be
utilized by the processor or an attached data logger.
The next rung shows how to handle a module response to block 9970 in order to
read the date and time information from the MVI module:
5.3 Control Routine (U:4)
The control routine is responsible for controlling the module or handling requests
from the module using the control registers (M1:1.4100 to 4199).
The following rung requests the cold-boot operation for the module. Placing the
value 9999 in the first control register makes this request. When the module
recognizes this value in the control register, it performs the cold-boot operation.