Siemens SINUMERIK 840Di sl User Manual

6
01/2008 "Program" operating area
6.5 Multi-channel step sequence programming (option)
6
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition 6-275
The channel is affected by this synchronization but the specified
channel number does not match the selected synchronization icon.
Synchronization errors
The difference in the number of channels is crucial for unsymmetrical
channel numbers. The number of the channel in which the WAIT
marker is programmed must not be included.
If the sequence is dependent on which channel reaches the WAIT
marker first, an error is pending in the synchronization programming.
Pos. block
number.
Abort
The first synchronization that was not found (red) is output in a dialog
box:
Synchronization string, channel, channel to be synchronized:
Further information on the cause of the fault can be obtained by
positioning the cursor on the block number.
“Abort” softkey.
Notice Synchronous display of WAIT marks
WIT marks can only be used once, otherwise errors can occur for the
synchronous display.
Example:
Channel1: Channel2: Channel3:
WAITM(30,1,2)
WAITM(35,1,2
WAITM(30,1,2,3)
WAITM(30,2,1)
WAITM(35,2,1)
WAITM(30,2,1,3)
---
---
(WAITM(30,3,2,1)
In this special constellation, there are no unique specifications as to
how synchronization should be executed, i.e. the first WAITM of each
channel has the same WAIT mark number 30, but they are completely
independent of one another.
The result of the synchronization depends on the channel which you
used to start synchronization: If you start with either Channel 1 or 2,
synchronization runs without any problems and the expected result is
supplied. However, if you start with a channel number, then an error is
definitely output.

Siemens SINUMERIK 840Di sl Specifications

General

Brand	Siemens
Model	SINUMERIK 840Di sl
Category	Control Unit
Language	English