GE GFK-1852 user manual Serial Line Interfaces

Models: GFK-1852

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Chapter

6

Serial Line Interfaces

Serial Line Interfaces

The VMSE has RJ45 and screw block serial ports. The RJ45 port only supports RS-- 232, whereas the screw block port supports RS-232 and RS-485/422. By setting the switch located on the face of the VMSE and by selecting the matching setting with the configuration software, RS-232 or RS-485/422 can be selected.

NOTE: The VMSE is a one serial port device, meaning that only one port can be used at a time. In the configuration menu, channel one refers to either one of the ports being used. If Channel two appears, it should be disregarded (this channel applies to another type of product).

RJ45 Connector Pin-outs (RS-232)

The serial RJ45 connector supports up to 38400 bits per second and has the following signals.

Pin

Direction

Function

1

Not Connected

None

2

From VMSE

RTS Ready to Send

3

To VMSE

CTS Clear to Send

4

 

Signal Ground

5

From VMSE

TXD Transmitted Data

6

To VMSE

RXD Received Data

7

Hard-Wired Output

DSR Data Set Ready

8

Not Connected

None

Figure 6-1. Serial RJ-45 (RS-232) Pin-out Configuration

NOTE: Pin number 1 of the RJ-45 serial connector is the first pin from the top.

GFK-1852

6-1

Page 48
Image 48
GE GFK-1852 user manual Serial Line Interfaces