Mitsubishi Electric NF400-HEW, Инструкция по эксплуатации

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10.3 Precautions for MDU with CC-Link communication
10.4 I/O signal list (with CC-Link communication)
Signal direction:
MDU
→ Master unit
Signal direction:
Master unit
→ MDU
Signal name
RYn0 to RYnE
RYnF
ON/OFF (AX) status flag
Trip (AL) status flag
Pre-alarm (PAL) status flag
Overload cutoff (LTD) flag
Short cutoff (STD/INST) flag
Lower limit value UNDER
Upper limit value OVER
Unusable
Unusable
Unusable
Unusable
Overcurrent alarm (OVER) status flag
Unusable Unusable
Unusable Unusable
Unusable
Command complete response flag Command execution request flag
Unusable
n: Address assigned by the station number setting
Note 1: If the alarm retention setting is set to
“
self-hold
”
and this is set once to
“
1
”
(ON), it will continue to be
“
1
”
(ON) until the alarm is reset on
the MDU, even if the cause of the alarm is eliminated.
Note 2: When the error status flag (RX(n+1)A) is
“
1
”
(ON), the bit (RXn8, RXn9) status does not change.
If the error status flag is set to “ 1 ” (ON), we recommend eliminating the cause of the error immediately.
Note 3: If an unusable device is turned ON/OFF by a sequence program, MDU functionality is not guaranteed.
Unusable
Error status flag Error reset status flag
Remote READY
Initial data processing request flag Initial data processing complete flag
The MDU uses 32 input contacts and 32 output contacts when sending and receiving data with the master unit.
The following table shows I/O signal assignment and signal names.
Device RX indicates an input signal from the MDU to the master unit, while device RY indicates an output signal from the master unit to the MDU.
Device No. Signal name
Unusable
Device No.
RXn0
RXn1
RXn2
RXn3
RXn4
RXn5
RXn6
RXn7
RXn8
RXn9
RXnA
RXnB
RXnC
RXnD
RXnE
RXnF
RX(n+1)0 to RX(n+1)7
RX(n+1)8
RX(n+1)9
RX(n+1)A
RX(n+1)B
RX(n+1)C to RX(n+1)F
RY(n+1)0 to RY(n+1)7
RY(n+1)8
RY(n+1)9
RY(n+1)A
RY(n+1)B to RY(n+1)F
(1) Note that the special link registers of the master unit (SW0084 to SW0087) will not be set to
“
1
”
(ON), even if a watchdog timer error occurs in the
MDU.
(2) A power outage will occur in the CC-Link I/F section if the power turns OFF for at least 5 to 10 ms. When the power is restored, the initial data
processing request flag (RX(n+1)8) will be set to
“
1
”
(ON), remote READY (RX(n+1)B) will be set to
“
0
”
(OFF), the bits that indicate the alarm and
circuit breaker status (RXn0 to RXn7) and the upper/lower limit bits (RXn8 and RXn9) will be retained at their states prior to the power outage, and
the remote registers (RWrn to RWrn+3) will be set to 00H.
(3) Refer to
“
MDU Breaker Programming Manual
”
for details on PLC programs.