IDEC MICROSmart FC6A Series User Manual page 424

6: D
EVICES
■ D8268 to D8275, D8774 to D8781: Remote Host Number 1 to 255 (connection 1 to 16)
Special data registers that change the communications device when user communications client is set. For details, see Chapter 5
"Switching Remote Host Numbers" in the "FC6A Series MICROSmart Communication Manual".
■ D8278, D8279, D8760, D8761: Communication Mode Information (Client Connection) (Connection 1 to 16)
D8278 = Indicates the communication mode of connections 1 through 4.
D8279 = Indicates the communication mode of connections 5 through 8.
D8760 = Indicates the communication mode of connections 9 through 12.
D8761 = Indicates the communication mode of connections 13 through 16.
The allocation of connections in the device (bit assignment) is as follows.
Bit
15
D8278
Bit
15
D8279
Bit
15
D8760
Bit
15
D8761
Client connection (most significant bit = 0)

0000: Unused
0001: User Communication
0010: Modbus TCP client
0100: User communication UDP
Server connection (most significant bit = 1)

1000: Maintenance Communication
1001: User Communication
1010: Modbus TCP server
6-40
Bit Bit
8 7
Bit Bit
8 7
Bit Bit
8 7
Bit Bit
8 7
FC6A S MICROS
ERIES MART
Bit
0
Connection 1
Connection 2
Connection 3
Connection 4
Bit
0
Connection 5
Connection 6
Connection 7
Connection 8
Bit
0
Connection 9
Connection 10
Connection 11
Connection 12
Bit
0
Connection 13
Connection 14
Connection 15
Connection 16
U ' M FC9Y-B1722
SER S ANUAL