IDEC FC6A-C16K1CE Communications Manual page 34

2: D
EVICE
■ D8106: RS232C DTR Output Control Signal Option (Port 1 to 3)
This register is used when indicating the FC6A Series MicroSmart control status and the transmit/receive status to the connected
device. This control line is an output signal from the FC6A Series MicroSmart to the connected device. This register is only valid
during user communication.
The allocation of communication ports in the device (bit assignment) is as follows.
Bit
15
0 (00): The signal is on when the FC6A Series MicroSmart is set to run and off when stopped.
While running, the signal is always on regardless of transmitting or receiving data. Set this value when it is
necessary to indicate the run status.
DTR signal
1 (01): Always off.
2 (10): Set this value when performing flow control for received data. The signal is on when data from the
connected device can be received.
The signal is off when data cannot be received.
Receive
DTR signal
3 (11): The operation is the same as the setting "0".
■ D8278, D8279: Communication Mode Information (Client Connection) (Connection 1 to 8)
D8278 = Indicates the communication mode of connections 1 through 4.
D8279 = Indicates the communication mode of connections 5 through 8.
The allocation of connections in the device (bit assignment) is as follows.
Bit
15
D8278
Bit
15
D8279
Client connection (most significant bit = 0)
•
0000: Unused
0001: User Communication
0010: Modbus TCP client
Server connection (most significant bit = 1)
•
1000: Maintenance Communication
1001: User Communication
1010: Modbus TCP server
2-18
Bit Bit Bit
8 7 5 4
Running Stopped
ON
OFF
Not possible Possible
ON
OFF
Bit Bit
8 7
Bit Bit
8 7
FC6A S M S A
ERIES ICRO MART
Bit Bit
3 2 1 0
Port 1
Port 2
Port 3
Running
Not possible
Bit
0
Connection 1
Connection 2
Connection 3
Connection 4
Bit
0
Connection 5
Connection 6
Connection 7
Connection 8
- -O T C
LL IN NE YPE OMMUNICATION
M FC9Y-B1730
ANUAL