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Section 3
Vendor-specific implementation
3.3.7.2
3.3.7.3
26
Table 14:
16 bit SSR1 register
Bit
Meaning
0
Device global warning
1
Device global error
2
Slot 0 (X130) warning or error
3
Slot 1 (X120) warning or error
4
Slot 2 (X110) warning or error
5
Slot 3 (X100) warning or error
6
Slot 4 (X000) warning or error
7...15
0 = not used
SSR2
The bit values in SSR2 are common for all Modbus clients. The bits give an overview of
the IED's mode. For example, bit 6 is activated if the IED's configured time
synchronization source is lost.
Table 15:
16 bit SSR2 register
Bit
Meaning
0
Test mode (1= Device is set into test mode)
1
Local/Remote Off (0= On, 1= Off)
2
Local/Remote state (0= Remote, 1= Local, only relevant if Bit 1=0)
3...5
Active setting parameter setting group (bit 3 = LSB)
001 = Setting group 1
010 = Setting group 2
011 = Setting group 3
100 = Setting group 4
6
IED time synchronization failure (1 = Failure)
7
0 = not used
8
Last reset cause (1= Power reset)
9
Last reset cause (1= Watchdog reset)
10
Last reset cause (1= Warm reset)
11...15
0 = not used
SSR3
The bit values in the SSR3 register are Modbus client dependent.
Bits 0 and 1 are set to "1" as long as the client in question has not read out the available
Modbus event or fault records.
Bit 4 is set to "1" if any momentary bit has been updated in the Modbus memory map. The
bit is reset when the client reads the register.
Bit 5 is set to "1" if any MCD bit has been set in the Modbus memory map. The bit is reset
when the client reads the register.
Bit 6 is set to "1" to indicate the device restart. The bit is reset when the client reads this
register.
1MAC052634-MB D
615/620 series ANSI
Communication Protocol Manual
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