Basler BE1-CDS220, Инструкция по эксплуатации

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BE1-CDS220 Protection and Control 4-41
Select Before Operate Control of Virtual Selector Switches
The state of each virtual selector switch can be controlled at the optional HMI using Screens 2.1.1
through 2.1.8, \CTRL\43\x43 (where x = blank, 1, 2, 3, 4, 5, 6, or 7). Control is also possible through the
ASCII command interface by using the select-before-operate commands CS-x43 (control select-virtual
switch) and CO-x43 (operate select-virtual switch). A state change takes place immediately without
having to execute an
Exit - Save settings command. The state of the switches cannot be controlled using
BESTCOMS. BESCOMS can only be used to set the logic mode or name labels (Figure 4-41) for the x43
virtual selector switches.
CS/CO-x43 Command
Purpose: Select and operate the virtual selector switches.
Syntax: CS/CO-<x>43[=<Action>]
Comments: x = no entry for 43 or 1 for 143. Action = 0 to open the switch, 1 to close the switch, P to
pulse the switch to the opposite state for 200 milliseconds and then automatically return
to starting state.
The virtual switch control commands require the use of select-before-operate logic. First, the command
must be selected using the CS-x43 command. After the select command is entered, the CO-x43 control
command will be accepted during a 30-second window. The control selected and the operation selected
must match exactly or the operate command will be blocked. If the operate command is blocked, an error
message is output.
CS/CO-x43 Command Examples:
Example 1. Read the status of Virtual Switch 43.
>CO-43
0
Example 2. Momentarily toggle the state of Switch 543 to closed.
>CS-543=P
543=P SELECTED
>CO-543=P
543=P EXECUTED
Example 3. An example of an operate command not matching the select command.
>CO-243=1
ERROR:NO SELECT
( Note: Must enter “CS-243=1” first to select.)
Figure 4-41. Virtual Switches Screen, 43 - 143 - 243 - 343 - 101 Tab