Byte 1: Path/Operating Mode - Siemens SIMATIC S5 Manual

IP 267
4.2.3 Byte 1: Path / Operating Mode
The path is specified as the number of step pulses to be executed. Bits P16 to P19
are the higher-order bits of the 20 bit address. The path can consist of a maximum
of 1,048,575 pulses per job.
Bit 0 to 3: Path P 16 to P 19
Bit 4 to 5: Operating mode bits OM 0 and OM 1:
The IP 267 offers four basic operating modes each of which can be
selected via the two operating mode bits OM0 and OM1 in the
positioning job or during configuration ( Table 4-7.).
OM 1
0
0
1
1
"STOP" mode
Message frames with the "STOP" mode are interpreted as follows by the IP 267:
1. "STOP" in conjunction with velocity 0:
Interruption of current positioning jobs (with deceleration ramp)
2. "STOP" in conjunction with velocity = 0:
Delete module configuration
3. "STOP" in conjunction with start/stop rate (f
Reconfigure module, e.g. after power failure
You can abort positioning jobs by sending the "STOP" mode to the IP. Pulse
output is not interrupted abruptly in this case but terminated with a deceleration
ramp ( Figure 2-1.)
EWA 4NEB 812 6061-02a
Table 4-7. Operating Mode Bits
OM 0 Meaning
0 Stop
1 Start forwards
0 Start backwards
1 Neutral (preparation for
a new job)
ss
Addressing and Programming
) 0:
.
4
4-11