Lenze E94AxPExxxx - Manual (Page 410)

11 Safety engineering
11.3 System block "LS_SafetyModuleInterface"
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Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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11.3.2 I/O status information
Via the bit coded status signal SMI_dnIoState of the LS_SafetyModuleInterface SB, the SM3xx
safety module transmits the status of the safe inputs and outputs to the application.
• Which bits are supported depends on the safety module used.

Tip!
For decoding the status signal into individual boolean status signals, simply connect the
output SMI_dnIoState to the L_DevSMStateDecoderIO FB which is available in the function
library from V2.0.
11.3.3 Control information
Via the bit coded control signal SMI_dwControl of the LS_SafetyModuleInterface SB, the SM3xx
safety module transmits information on safety functions requested, or on active safety functions to
the application.
• Several safety functions can be requested/active at the same time.
• Which bits are supported depends on the safety module used.
Bit coding of the SMI_dnIoState status signal
Bit Name Meaning
0 SD-In1 Sensor input 1 in ON state.
1 SD-In2 Sensor input 2 in ON state.
2 SD-In3 Sensor input 3 in the ON state.
3 SD-In4 Sensor input 4 in the ON state.
5 AIS Restart acknowledgement via terminal effected (negative edge: 10).
6 AIE Error acknowledgement via terminal effected (negative edge: 10).
8 PS_AIS Restart acknowledgement via safety bus effected (positive edge: 01)
9 PS_AIE Error acknowledgement via safety bus effected (positive edge: 01)
12 SD-Out1 Safe output 1 (feedback output) in the ON state.
Bits not listed are reserved for future extensions!

Note!
The corresponding actions (e.g. braking, braking to standstill, holding of the standstill
position) must be executed by the application, e.g. via the basic function " Limiter ".
( 536)
• To integrate the basic function "Limiter", the output SMI_dwControl is to be
connected to the input LIM_dwControl of the LS_Limiter system block.