Siemens SIMATIC S5 ET 200U - Sending Data from the Counter Modules to the CPU

9-26
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
Load operations transmit a diagnostics byte and the actual value to the CPU
in the master station (see Table 9-1).
Table 9-1 Sending Data from the Counter Modules to the CPU
Byte 0 Byte 1 Byte 2 Byte 3
irrelevant Diagnostics
Byte
Actual Value
Byte
High–Order Byte Low–Order Byte
(Byte 0 = module address)
The control program uses transfer operations to transmit two setpoints to the
counter module (see Table 9-2).
Table 9-2 Sending Data from the CPU to the Counter Module
Byte 0 Byte 1 Byte 2 Byte 3
Setpoint 1 Setpoint 2
High–Order Byte Low–Order Byte High–Order Byte Low–Order Byte
(Byte 0 = module address)
Function Modules