Interface Specification; Connector Specification - Mitsubishi QJ71MB91 User Manual

3
SPECIFICATIONS
3.2 RS-232 Interface Specification
This section explains RS-232 interface specifications.
3.2.1 RS-232 connector specification
This section provides the specifications of RS-232 connector that is connected to a target
device.
1
2
3
4
5
(1) Descriptions of control signals
The following explains control signals. (The pin number of the connector is indicated
within the brackets.)
(a) RD signal (2)
(b) SD signal (3)
Pin
Signal code
number
1
prohibited)
2 RD (RXD)
6
3 SD (TXD)
7
8
4
prohibited)
9
5 SG (GND)
6
prohibited)
*1
7
*1
8
9
prohibited)
Figure 3.1 RS-232 connector specification
* 1 Connect Pin 8 to Pin 7.
Without connecting Pin 7 and 8, Pin 8 turns off and the CS signal may turn off (error code: 7403
Signal for receiving data.
Signal for sending data.
Signal name
(Use (Use
prohibited)
Reception data
Transmission
data
(Use (Use
prohibited)
Signal ground
(Use (Use
prohibited)
Output for
cable
-
disconnection
detection
Input for cable
- disconnection
detection
(Use (Use
prohibited)
3.2 RS-232 Interface Specification
3.2.1 RS-232 connector specification
Signal direction
QJ71MB91 Target device
-
-
-
-
3
1
2
3
4
5
6
).
H
7
8
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