YOKOGAWA F3RS22-0N, Руководство пользователя

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2-4
IM 34M6H21-01E 2nd Edition : Aug, 2001-00
2.2 External Wiring
„
Connector Pin Assignments
The following figure shows how the module’s connector looks when viewed externally.
Signal Direction
Pin
Number
Signal
Name
Name
FA-M3 Remote
equipment
Signal
Monitoring
(yes/no)
Purpose *
1 CD Data
Carrier
Detect
yes
Receives only when this signal is on. Sending proceeds
as follows:
(1) Transmits regardless of the state of CD (default).
(2) Transmits only when CD is off.
2 RD Receive
Data no
3 SD Send Data no
4 ER Data
Terminal
Ready
no
(1) ER turns on when power is switched on and stays on
(default).
(2) Turns on and off by software
5 SG Signal
Ground no
6 DR Data Set
Ready yes
Used to check if remote equipment is ready for receiving
(1) Receives regardless of the state of DR (default).
(2) Receives only when DR is on.
7 RS Request to
Send no
Used when transmitting data to the remote equipment
(1) Always on (default).
(2) Turns on only during transmission
8 CS Clear to
Send
yes Permission to transmit from the remote equipment.
Transmits only when this signal is on.
9 — Unused no no
* : Option (1) or (2) can be set using a BASIC program.
5
1
9
6
D-Sub 9-pin
Connector (Female)