A&D FS-03i, Instruction Manual

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1. Disconnect the main power cord from the outlet. 
2. Remove the ten hexagon screws and open the rear cover. 
3. Connect the cable from external device through the cable gland to the terminal 

blocks on the interface board. Also connect a yellow/green wire inside the display 
pod directly to “FG” on the terminal block. 

Take care not to drop the rear cover or the wires connecting between front 
display and rear cover will be damaged.

4. Connect the connector cable included in the OP-03 to the connectors on the 

interface board and the main board inside the display pod. 

5. Fix the interface board with 2 M3 x 6 screws included in the OP-03. 
6. Tighten the cable gland and attach the rear cover to the front display firmly using the 

ten hexagon bolts. 

7. Connect the main power cord to the outlet. 
8. Set the function parameters F04, F05, F06, F18, F19 and F20 according your 

application. 

‰

 The OP-03 RS-232C must have settings F18-00 and F19-0. 

2-2. OP-03 Specifications

RS-232C Specification 

Transmission form 

Asynchronous, bi-directional, half-duplex 

Data format 

Baud rate:  2400, 4800, 9600 bps 

Data: 

7 bits + parity 1bit (even / odd) or 8 bits 

(non-parity) 
  

Start bit: 

1 bit 

Stop bit: 

1 bit 

  Code: 

ASCII 

  Terminator: 

C

R

L

F

LSB

0

1

2

3

4

5

MSB

6

Maximun rating of the Relau Outoput   

The maximum rating of the replay output is as follows. 

‰

 Maximum voltage: 

50V DC   

‰

 Maximum current: 

100 mA DC 

‰

 Maximum ON resistance: 

8 

Ω

Stop bit 

1 (-15V~-5V) 

0 (5V~15V) 

Start bit

Data bit

Parity bit