The PLC
Operating Manual XCA 1100 / XCA 1200
●
Version 12/17
105
8
The PLC
Operating system: ProConOS
Programming: MULTIPROG acc. to IEC 61131-3
Communication with the CNC via shared RAM
8.1
Programming
The XCx is programmed on a PC using the MULTIPROG
programming software to IEC 61131-3.
Important!
The programming software consists of the MULTIPROG software
and the add-ons for MULTIPROG from Schleicher.
The programming system and programming instructions can be
ordered as accessories (
page 147).
The PLC is supplied with a ready-configured project, which you can
use as the basis for programming the PLC (
MULTIPROG", page 43).
8.2
PLC Operating States and Start Behaviour
8.2.1
Operating States
Operating state
Description
ON
No program loaded
STOP
Program loaded
User tasks inactive
Process map memory inputs are not updated
Output signals are not sent to inputs and outputs
RUN
Program execution active
User tasks active
Process map memory inputs updated according to I/O
configuration
Process map memory outputs updated according to I/O
configuration and program execution
HALT
Program execution stopped at a breakpoint
User tasks inactive
Process map memory inputs are not updated
Process map memory outputs are not updated
Table 20: PLC operating states
The current state of the PLC is displayed in the project control dialog
in the
Status
line in MULTIPROG. If “debug” is displayed behind the
current state in the control dialog it means that breakpoints have been
set or variables forced.