Lenze I/O system 1000 - Page 385

7 EtherCAT communication
7.12 Diagnostics
385
Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17
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EPM-S406, EPM-S408 - process alarm
Diagnostic byte Bit 7 ... 0
1 Bit 0: Exceedance of limit value, channel 1
Bit 1: Limit value exceedance, channel 2
Bit 7 ... 2: 0 (fix)
2 Bit 0: Limit value underflow, channel 1
Bit 1: Limit value underflow, channel 2
Bit 7 ... 2: 0 (fix)
3/4 s ticker value at the time of the alarm
The I/O compound module features an integrated 32-bit timer (s-Ticker) which is started
at switch-on and restarts at 0 after 232 - 1 s. These two bytes represent the lower two bytes
of the s ticker (0 ... 216 - 1)
EPM-S600 - process alarm
Diagnostic byte Bit 7 ... 0
1Bit 0: Hardware gate open
Bit 1: Hardware gate closed
Bit 2: Overflow/underflow/final value
Bit 3: Comparison value reached
Bit 4: Latch value
Bits 7 ... 5: 0 (fixed)
2 State of the inputs at the time of the alarm
Bit 0: A/pulse
Bit 1: B/direction
Bit 2: Latch
Bit 3: Hardware gate
Bit 4: Reset
Bits 7 ... 5: 0 (fixed)
3/4 Ticker value at the time of the alarm
EPM-S601, EPM-S602 - process alarm
Diagnostic byte Bit 7 ... 0
1Bit 0: 0
Bit 1: 0
Bit 2: Counter 1, overflow/underflow/final value
Bit 3: Counter 1, comparison value reached
Bit 4: 0
Bit 5: 0
Bit 6: Counter 2, overflow/underflow/final value
Bit 7: Counter 2, comparison value reached
2 State of the inputs at the time of the alarm
Bit 0: Counter 1, A/pulse
Bit 1: Counter 1, B/direction
Bit 2: Counter 2, A/pulse
Bit 3: Counter 2, B/direction
Bit 7 ... 4: 0 (fix)
3/4 16 bit s value at the time of the alarm