Data Transfer - Siemens S5-100U User Manual

Function Modules

15.6.2 Data Transfer

The data is transmitted via the I/O bus. Four bytes are used.
Examples of data transfer are shown in section 15.6.6.
Transfer from the Programmable Controller to the Counter Module (PIQ)
The control program transfers two setpoints to the counter module by means of transfer operations.
Table 15-1. Sending Data from the Programmable Controller to the Counter Module
Byte 0
Setpoint 1
High byte
Transfer from the Counter Module (PII) to the Programmable Controller
The counter module transfers the diagnostic byte and the current counter status. In the control
program, this data can be read in by means of load operations and then evaluated.
Table 15-2. Sending Data from the Counter Module to the Programmable Controller
Byte 0
Irrelevant
EWA 4NEB 812 6120-02
Byte 1
Low byte
Byte 1
Diagnostic
byte
Byte 2
Setpoint 2
High byte
Byte 2
Actual value
High byte
S5-100U
Byte 3
Low byte
Byte 3
Low byte
15-25