Mitsubishi FX2N-32DP-IF, User Manual

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FX2N-32DP-IF Profibus-DP Interface Unit Advanced Devices 5
5-6
5.2.3 Profibus-DP Network Status (M8020 ~ M8039 and D8020 ~ D8039)
Table 5.7: Special Auxiliary Relays (M8020 ~ M8039)
Diagnostic
Device
Name Description
M8020 Setting parameter
When this bit is changed from OFF to ON, the parameter D200
~ D299 (made by the programming tool) is written to special
function blocks’ BFM. After the write is completed, this bit is
turned automatically to OFF.
M8021 ~ M8033 Reserved
M8034 All output disable
All physical switch gear for activating outputs is disabled.
However, for debugging purposes the logical state of these
outputs (D100 ~ D199) can be set, but remain disabled in the
actual module.
M8035 ~ M8039 Reserved
Table 5.8: Special Data Registers (D8020 ~ D8039)
Diagnostic
Device
Name Description
D8020
(
"
)
Data exchange
status
Data register D8020 contains a status bit for data exchange.
If this is “1”, 32DP-IF is in data exchange mode.
If this is “0”, 32DP-IF is not in data exchange mode.
D8021
(
"
)
Swap byte order See note 1.
D8022
(
"
)
Length of input
(sent) data in byte
The values held in these devices are copied from the input data
length and output data length setting in the DP-master.
D8023
(
"
)
Length of output
(received) data in
byte
D8024
(
"
)
Baud rate See note 2.
D8025
(
"
)
Communication
status
See note 3.
D8026
(
8
)
Profibus module
ID (PNO ID code)
PNO-Nr.F232 (Hex)
(This number contains the Profibus module ID number for the
32DP-IF.)
D8027
(
8
) Slave address
The slave address is set only by the 32DP-IF’s DIP switches.
The slave address value is 0 to 126. The address change by a
Profibus-DP Class 2 master via the network or by a
programming device is not supported.
D8028 Reserved
D8029
(
8
) (
4
) Error status See note 4.