HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 599)

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TNC 407/TNC 415/TNC 425 4 PLC Modules 01.98
4.1.3 Write in Word Range (Module 9020/9021/9022)
The defined byte, word or doubleword is written to the defined position in the word memory.
Indexed reading in the memory is possible by specifying a variable as the name of the memory cell.
Possible errors:
- The defined address is outside the valid range (0..1023).
- Module 9021: The defined address is not a word address (not divisible by 2).
- Module 9022: The defined address is not a doubleword address (not divisible by 4).
Call:
PS B/W/D/K (Address)
PS B/W/D/K
CM 9020 write byte (Value)
or
PS B/W/D/K (Address)
PS B/W/D/K
CM 9021 write word (Value)
or
PS B/W/D/K (Address)
PS B/W/D/K
CM 9022 write doubleword (Value)
Example of Module 9020
STACK
Wortspeicher
120
35
120
120
B10
B35
B100
..
.
PS B10
PS B100
CM9020
..
.
35
Error status after call: M3171 = 0: Byte/word/doubleword was written
1: Error condition see above