Interface Specifications; External Interfaces - Pro-face GP2000H Series User Manual

Chapter 2 – Specifications
2.3

Interface Specifications

This section describes the specification of each GP2000H unit interface. The external
interface is located on the board, at the rear of the GP unit, where the cable cover is opened.
• Pin #7 (VCC) DC 5V Output is not protected. Use only the desig-
nated level of current.
• Use Digital's GP2000H Series connection cable to connect a serial
interface.

2.3.1 External Interfaces

Serial Interface
This interface can be either RS-232C or RS-422. Connects the GP unit to the host (PLC).
Pin Assignments
20
2
• Pin #7 (VCC) DC 5V Output is not protected. Use only the desig-
nated level of current.
• Use Digital's GP2000H Series connection cable to connect a serial
interface.
• The GP unit's serial port is not isolated. If the unit the GP will be
connected to is also not isolated, be sure to connect the SG (#8)
terminal. If this is not done, the RS-422 circuit could be damaged.
2–6
Pin #
1
2
3
4
5
19
6
7
8
9
10
11
12
1
13
14
15
16
17
18
19
20
To confirm your PLC unit's connection specifications, refer to the
Pro-Designer On-line Help.
Signal Name
RS Request to Send (RS-232C)
SD Send Data (RS-232C)
CS Clear to Send (RS-232C)
RD Receive Data (RS-232C)
CD Carrier Detect (RS-232C)
ER Enable to Receive (RS-232C)
VCC DC 5V ±5% Output 0.25A
SG Signal Ground
NC Not Connected (Reserved)
NC Not Connected (Reserved)
NC Not Connected (Reserved)
NC Not Connected (Reserved)
RDA Receive Data A (RS-422)
RDB Receive Data B (RS-422)
SDA Send Data A (RS-422)
SDB Send Data B (RS-422)
CSA Clear to Send A (RS-422)
CSB Clear to Send B (RS-422)
ERA Enable to Receive A (RS-422)
ERB Enable to Receive B (RS-422)
GP2000H Series User Manual
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