48
Gem6K Hardware Installation Guide
RS-232/485 Communications
The Gem6K uses an ASCII language for communication. Gem6K drives can be
connected together in RS-232 Daisy Chains and RS-485 Multi-Drop configura-
tions.
In this section:
•
Establishing Communications
•
Configuring the Serial Ports
•
RS-232 Communications
•
RS-232 Daisy Chaining
•
RS-485 Communications (COM1 only)
•
RS-485 Multi-Drop (COM1 only)
Establishing Communications
The Gem6K has two serial ports located on the front of the drive. Both are 9 pin
D-connectors. One is labeled “
RS-232/485
”; this port is referred to as COM1. The
other is labeled “
RS-232
”; this port is referred to as COM2.
RS-232/485 Connector
You can use the
RS-232/485
connector (COM1) for either RS-232 or four wire RS-
485 communications, as shown below.
2
1
3
4
5
6
7
8
9
Rx-
(RD A)
Tx-
(TD A)
6
7
8
9
2
1
3
4
5
Rx Tx
Gnd
Gnd
Rx+
(RD B)
Tx+
(TD B)
RS-232 Connections
1. RS-485 Rx+ (RD B)
2. RS-232 Receive
3. RS-232 Transmit
4. RS-485 Tx+ (TD B)
5. Ground
6. No connection
7. RS-485 Rx– (RD A)
8. RS-485 Tx– (TD A)
9. No connection
Pin Assignments
RS-485 Connections
RS-232/485 Connector (COM1) – Connections
To communicate with the Gem6K, connect its
RS-232/485
connector to a PC
running Motion Planner, or other terminal emulation software. Verify your
computer’s connector pinout; you may need to use a “null modem” cable to
connect your computer’s transmit terminal to the Gem6K’s receive terminal, your
computer’s receive terminal to the Gem6K’s transmit terminal, and your
computer’s ground terminal to the Gem6K’s ground terminal.
RS-232 Connector—and the RP240 Remote Operator Panel
You can use the
RS-232
connector (COM2) for RS-232 communications (but
not
RS-485), or to connect an RP240. Its pinout is shown in the next drawing.
6
7
8
9
2
1
3
4
5
Rx Tx
Gnd
+5VDC
RS-232 Connector
1. No connection
2. RS-232 Receive
3. RS-232 Transmit
4. No connection
5. Ground
6. No connection
7. No connection
8. No connection
9. +5VDC
Pin Assignments
RS-232 Connector (COM2) – Connections
