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APPENDICES
Appendix 7.2 Programming using dedicated instructions
Since the safety CPU module does not support the intelligent function module device (U
G
) and the FROM/TO instructions, data stored in the buffer memory of the intelligent
function module cannot be used in the sequence program of the safety CPU module.
To use data stored in the buffer memory of the intelligent function module in the sequence
program of the safety CPU module, use I/O signals, which correspond to the buffer
memory, of the intelligent function module.
In order to use dedicated instructions listed in TableApp.29, replace the programs using
the FROM/TO instructions with the programs using the I/O signals.
Dedicated instruction
OPEN
CLOSE
BUFRCV
BUFSND
UINI
Sample programs where the intelligent function module device (U
TO instructions are replaced with I/O signals are described below.
Appendix 7 Dedicated Instructions which can be used in Safety CPU
TableApp.29 List of targeted dedicated instructions
Function description
Establishes a connection.
Disconnects a connection.
Reads received data. (for main program)
Sends data.
Reinitializes the Ethernet module.
Reference
(1) in this section
(2) in this section
(3) in this section
(4) in this section
(5) in this section
G
) and the FROM/
App
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Module
9
10
11
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