Displaying Messages; Displaying Plc And Nc Variables - Siemens SINUMERIK 840D sl Operating Manual

Alarms, error messages, and system alarms

10.3 Displaying messages

10.3 Displaying messages
PLC and part program messages may be issued during machining.
These message will not interrupt the program execution. Messages provide information with
regard to a certain behavior of the cycles and with regard to the progress of machining and
are usually kept beyond a machining step or until the end of the cycle.
Overview of messages
You can display all issued messages.
The message overview contains the following information:
● Date
● Message number
● Message text
Proceed as follows
10.4

Displaying PLC and NC variables

The "PLC/NC Status" window supports the observation and modification of PLC memory
locations and NC system variables.
You can also modify PLC memory locations.
You receive information in the list on operands, with their format and status value.
PLC operands
Inputs
Outputs
Bit memory
356
is only displayed for PLC messages
1. Select the "Diagnosis" operating area.
2. Press the "Messages" softkey.
The "Messages" window appears.
Input bit (Ex), input byte (EBx), input word (EWx), input double word (EDx)
Output bit (Ax), output byte (ABx), output word (AWx), output double word
(ADx)
Memory bit (Mx), memory byte (MBx), memory word (MWx), memory
double word (MDx)
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
HMI sl Turning