User Communication Via Serial Communication - IDEC FC6A-C16K1CE Communications Manual

5: U C
SER OMMUNICATION

User Communication via Serial Communication

With user communication via serial communication, the FC6A Series MicroSmart can send and receive data between external
devices connected to port 1 to port 3, such as a printer or barcode reader, by using the TXD (user communication transmit) and
RXD (user communication receive) instructions.
User Communication Overview
By installing a communication cartridge on the FC6A Series MicroSmart expansion communication port, the FC6A Series
MicroSmart can communicate with two external devices simultaneously.
When using an RS485 communication cartridge, FC6A Series MicroSmart modules can communicate with a maximum of 31 RS485
devices using the user communication.
User communication transmit and receive instructions can be programmed to match the communication protocol of the equipment
to communicate with. Possibility of communication using the user communication mode can be determined referring to the user
communication mode specifications described below.
A barcode reader is connected to port 1 of the FC6A Series MicroSmart.
Serial Port 1
FC6A Series MicroSmart
User Communication Mode Specifications
Type
Communication Port
Maximum Nodes
Standards
Baud Rate
Data Bits
Parity
Stop Bits
Receive Timeout
Communication Method
Maximum Cable Length
Maximum Transmit Data
Maximum Receive Data
BCC Calculation
5-24
I
NSTRUCTIONS
To Serial Port 1
RS232C User Communication
Port 1 to port 3
1 per port
EIA RS232C
1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200 bps (Default: 115,200)
7 or 8 bits (Default: 7)
Odd, Even, None (Default: Even)
1 or 2 bits (Default: 1)
10 to 2,540 ms (10 ms increments) or none
(Receive timeout is disabled when 2,550 ms is selected.)
The receive timeout has an effect when using RXD instructions.
Start-stop synchronization system
5 m
1,536 bytes
1,536 bytes
XOR, ADD, ADD-2comp *, Modbus ASCII *, Modbus RTU *
(* For calculation examples, see "BCC Calculation Examples" on page 5-49.)
FC6A S M S A
ERIES ICRO MART
User Communication Cable
FC6A-KC1C
5 m (16.4 ft.) long
Attach a proper connector to the open
end of the cable referring to the cable
connector pinouts shown below.
- -O T C
LL IN NE YPE OMMUNICATION
To RS232C Port
RS485 User Communication
Port 1 to port 3
31 maximum
EIA RS485
200 m
M FC9Y-B1730
ANUAL
RS232C Equipment