Feedback Message Frames (Ip 267 To Pc) - Siemens SIMATIC S5 Manual

IP 267
4.3

Feedback Message Frames (IP 267 to PC)

Information on the distance to go and the status bits of the IP 267 are sent in the
feedback message frame to the addresses in the process input image (PII)
( Table 4-8.). The process I/O images (PII and PIQ) are updated after every scan
of OB 1. The contents of the PIQ are transferred to the IP 267 at the same time as
the feedback messages of the IP 267 are transferred to the PII. The feedback
messages of the IP 267 are therefore always delayed by one OB cycle. The
feedback message for a particular positioning job can therefore be evaluated
after the next OB cycle.
The distance to go and the status bits are stored until the IP 267 receives a new
positioning job or the configuration is deleted. Bits "IPQ" (pulse output), "IPD"
(pulse disable), "ILCN" (configuration executed) and "IJE" (job executing) are
exceptions to this. IPQ is only set for the duration of pulse output; "IPD" is set
when the digital input PD (emergency limit switch) is active. You can only reset
"IPD" when PD is no longer active (limit switch not activated) and the
configuration of the module is deleted.
Table 4-8. Addressing Feedback Message Frames
Slot No.
0
0 QB 64
1 72
2 80
3 88
4 96
5 104
6 112
7 120
EWA 4NEB 812 6061-02a
Addressing and Programming
BYTE
1 2
QB 65 QB 66
73 74
81 82
89 90
97 98
105 106
113 114
121 122
3
QB 67
75
83
91
99
107
115
123
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