1928 HEIDENHAIN Technical Manual iTNC 530 HSCI
Module 9113 Receive ASCII characters via data interface
You must first assign the interface to the PLC and initialize it with Module
9100.
Module 9113 reads a single ASCII character from the receiving buffer of a
serial interface and resets the receiving buffer.
If there is more than one character in the receiving buffer, the first is returned
and the others are stored in a special buffer.
You can interrogate the current state with Module 9102, bit 8.
As long as data remains in the buffer, no further characters are collected from
the interface.
If MP5030.x < 2, the characters cannot be read from the interface until the line
with the character requested in the protocol has been executed.
Can only be called in a submit job or spawn job!
Call:
PS B/W/D/K <>Interface>
0: RS232
1: RS422
CM 9113
PL W/D <>ASCII character read>
[0 to 255] = ASCII characters; [–1] = error
Error code:
Store the result in at least one word so that the values up to 255 will be
recognized.
Marker Value Meaning
M4203 0 Character was received
1 Error code in W1022
W1022 1 Incorrect interface
12 String too long
13 Interface not ready or no connection
14 Interface not assigned
16 Receiving buffer empty
18 Transmission error or input/output not ready
20 Module was not called in a submit or spawn job
37 Receiving queue is full
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