EUCHNER MGB-LxxB-PNA-xxx (PROFINET) with Data Structure Type A - Manual (Page 9)

Operating Instructions Safety System MGB-L..B-PNA-... (PROFINET)
9
Case B
You have an MGB with a version number of V 2.36.4 and a GSD file with a version
number of ..._110026-20110725 or older.
The guard locking solenoid is controlled if
for MGB-L1...
Ì bit SO1 = 1
for MGB-L2...
Ì bit O16 OR bit SO1 = 1
Truth table:
PROFINET bit PROFIsafe bit Guard locking with
O16 SO1 MGB-L1... MGB-L2...
0 0 active inactive
0 1 inactive active
1 0 active active
1 1 inactive active
What must be observed?
Bit O16 does not have any function with version MGB-L1... In existing installations
in which old devices are replaced with new ones (e.g. due to defect), malfunctions
can occur if control via bit O16 was programmed in the PLC.
Remedy:
1. Replace the old GSD file with a version from ..._110026-20110815.
2. In the parameter Locking module – solenoid control, activate unsafe control
of the guard locking solenoid via bit O16.
3. Set bit SO1 permanently to the value 1.
¨ The guard locking solenoid is controlled exclusively via bit O16
or
Ì Change the control bit from O16 to SO1 in your PLC program