2.8.4
RS485/RS422 Bus Connection
Pins 6 to 9 of serial 1 are connected directly to pins 6 to 9 of the Serial 2 connector. This provides for convenient
implementation of multi-drop RS422 or RS485 communications.
RA
RB
TA
TB
RA 6
RB 7
TA 8
TB 9
SERIAL
1
SERIAL
2
TO NEXT UNIT
RA 6
RB 7
TA 8
TB 9
RA 6
RB 7
TA 8
TB 9
RA 6
RB 7
TA 8
TB 9
RS485/RS422
HOST
SERIAL
1
SERIAL
2
UNIT 1
UNIT 2
2.9
DB9 Serial Port 2 Connection (C520 Only)
2.9.1
Overview
This port is generally used to drive serial printers (with DTR handshaking) and remote displays. It can also
be used as a network port. All connections for the port are on the Serial 2 connector. This is a standard DB9
socket requiring a female DB9 plug. The only output available from Serial 2 is RS232. The connections for
this are shown below.
Pin No
Function
Description
Connect to external device
2
RX2
RS232 receive
Transmit (DB9 pin 3)
3
TX2
RS232 transmit
Receive (DB9 pin 3)
4
DTR
RS232 DTR handshake
DTR (DB9 pin 4)
5
GND2
RS232 ground
Ground (DB9 pin 5)
6
RA
Serial 1 RS422/RS485 receive A-
If RS232 is used, do not connect pins 6..9. A
null-modem cable is not suitable. These pins
are connected internally to serial port 1.
7
RB
Serial 1 RS422/RS485 receive B+
8
TA
Serial 1 RS422/RS485 transmit A-
9
TB
Serial 1 RS422/RS485 transmit B-
Shield: Connect as directly as possible to the metal DB9 shell.
2.10
Optional Module Connections
Two optional modules can be connected. These provide a range of external drivers and features. See Section 15
and the module datasheets (for module specific connection details).
2.11
Ethernet Connection
A standard 10/100 Ethernet port is provided. See Section 14.
2.12
USB Host and Device Connections
A USB host and USB device interface are provided. See Section 10.
9
C500-600-2.0.3
Summary of Contents for C500 series
Page 1: ...C500 Series Digital Indicator Reference Manual ...
Page 54: ...8 3 Custom Format Tokens 8 3 1 Formatting 49 C500 600 2 0 3 ...
Page 56: ...230 Send time in format hh mm ss 231 Send Date in format dd mm yyyy 51 C500 600 2 0 3 ...
Page 123: ...118 C500 600 2 0 3 ...
Page 182: ...177 C500 600 2 0 3 ...