Operation
66
04/99 AWB 2700-1311 GB
Operating states of the
PLC
The PLC has the following operating states: “Run”,
“Ready”, “Not Ready”:
Ready
The “Ready” state has the following characteristics:
There is a user program in the PLC but the
program is not running;
The outputs have been reset and disabled.
The PLC can be switched to “Ready”:
By pressing the “Reset” button, if the operating
mode selector switch is set to “Halt”;
When the power is switched on, if the operating
mode selector switch is set to “Halt”;
Using the programming software on the PC;
In slave mode, if the master switches to “Halt”
(stop) and you have set the “Remote control”
function to “ON” in the Sucosoft topology
configurator.
Run
The user program is executed in the “Run” state.
The PLC can be switched to “Run”:
By pressing the “Reset” button, if the operating
mode selector switch is set to “Run” or “Run M
reset”;
When the power is switched on, if the operating
mode selector switch is set to “Run” or “Run M
reset”;
Communication with the PC is possible in all
three operating states. This means, for example,
that the current operating state of the PLC, the
real-time clock and the diagnostic bits can
always be read.
H1311g.bk Seite 66 Freitag, 4. Juni 1999 1:12 13
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