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■1126H to 1127H (4390 to 4391), 1142H to 1143H (4418 to 4419) Changing subnet mask via
fieldbus
The setting is the same as that from the NZ2FT-MT parameters "Subnet mask 1" and "Subnet mask 2".
The subnet mask can be checked and changed via the network.
1126H to 1127H (4390 to 4391) indicates the subnet mask of P1, and 1142H to 1143H (4418 to 4419) indicates the subnet
mask of P2.
■1128H to 1129H (4392 to 4393), 1144H to 1145H (4420 to 4421) Changing gateway via fieldbus
The setting is the same as that from the NZ2FT-MT parameters "Gateway 1" and "Gateway 2".
The gateway can be checked and changed via the network.
1128H to 1129H (4392 to 4393) indicates the gateway of P1, and 1144H to 1145H (4420 to 4421) indicates the gateway of P2.
■1130H (4400) Writing access in multi-client operation
The setting is the same as that from the NZ2FT-MT parameter "Writing access in multi-client operation".
When the NZ2FT-MT parameter "Additional TCP port" is set and two master stations are connected, set which master station
allows writing.
Bit
Description
■When 0 is set (corresponds to "for all connections" in the NZ2FT-MT parameter "Writing access in multi client operation")
0
Writing is permitted from both master stations.
■When 1 is set
Writing is permitted from one master station. If writing is permitted, it will be allowed until communication is disconnected.
When the communication that allows writing is disconnected, writing from the master station that requested the next write is permitted.
■When 0 is set (corresponds to "For client with first write access" in the NZ2FT-MT parameter "Writing access in multi client operation")
1
Requests from the master station that was previously requested to write is permitted. If writing is permitted, it will be allowed until communication is
disconnected.
Exception code 01H is returned to the master station where the write request was not permitted.
■When 1 is set (corresponds to "For client with first connection" in the NZ2FT-MT parameter "Writing access in multi client operation")
Write requests from the master station with which the connection was established earlier is permitted.
When b0 = 1, nothing is responded to the master station where the write request was not permitted.
2 to 15
System area
■1131H (4401) Modbus connection timeout in seconds
The setting is the same as that from the NZ2FT-MT parameter "Modbus connection timeout".
Monitors the non-communication status of automatic communication with the master station, and sets the time (seconds) until
disconnection due to a timeout.
When 0 is set, the operation is disabled.
■1132H (4402) Check the reference list before data exchange
The setting is the same as that from the NZ2FT-MT parameter "Check reference list before data exchange".
When 0 is set, data communication starts without checking Reference list (2800H or later) against Current module list (2A00H
or later). In this case, Reference list need not be created.
When 1 is set, data communication starts only when Reference list (2800H or later) matches Current module list (2A00H or
later). When both lists do not match, the NZ2FT-MT operates according to 1135H (4405) Field bus or reference list error
behaviour.
■1133H (4403) Process alarm
The setting is the same as that from the NZ2FT-MT parameter "Process alarm".
Set whether to turn on the bit of 101CH to 101FH (4124 to 4127) Collective process alarm message for the I/O modules when
Process alarm occurs.
When 0 is set, Collective process alarm message for the I/O modules will not turn on when Process alarm occurs.
When 1 is set, Collective process alarm message for the I/O modules turns on when Process alarm occurs.
11 NZ2FT-MT
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11.7 MODBUS Standard Functions and MODBUS Devices
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Troubleshooting
