Pilz PSS SB HYD, Basic license - Manual (Page 162)

6-100 Modular Block System: Hydraulic Presses
Standard Function Blocks SB072
Please note: In this case, the inverted signal from MP2 must be stored
in an auxiliary flag. This auxiliary flag should be assigned to input
parameter
MP2.
Example:
L
Exx.xx (input to which sensor MP2 is connected)
=N Myy.yy (Auxiliary flag; must not be used elsewhere in the
program)
Please note:
The auxiliary flag must be reserved exclusively for this application and
must not be used elsewhere in the program. Not even interrupt
processing should be able to amend this flag.
Error messages
Any fault that is detected will be stored in the corresponding error data
word (
SSNR) of DB015 (1st data block), until the fault has been fully dealt
with.
• Error messages in DB015
- Bit 00: Synchronisation time for NO_1/NO_2 (of the ESPE/AOPD)
exceeded
Remedy: Check ESPE/AOPD, cable, input card and all
conditions, then reset
- Bit 01: NO_1 or NO_2 on ESPE/AOPD had not dropped out
Remedy: This error can only be cleared by a further
interruption to the ESPE/AOPD (function control), followed by
pressing the reset button (input parameter
RSET).
- Bit 02: Simultaneous 0/1-pulse edge at input parameters MS1 and
MS2, or input parameter MS2 = 1 during a 1/0-pulse edge at
input parameters
MP1 and MP2 and the ESPE/AOPD has not
been interrupted (MS2 “sticking”).
Remedy: Check muting inputs, cable, input card and all
conditions, and then reset.
- Bit 03: Input parameter MS1 or MS2 has changed, while input
parameter Toff = 1
Remedy: Check ESPE/AOPD, cable, input card and all
conditions, and then reset.