Download 5 - AutomationDirect

Chapter 5: GS1 Modbus Communications
Communicating with Third-Party Devices
The GS1 Serial Comm Port will accommodate an RS-485 connection.
An RS-485 network cable can span up to 1000 meters (3280 feet). The GS1 AC
drive communication address is specified by P9.00. The third party device then
controls each AC drive according to its communication address.
The GS1 series AC drive can be set up to communicate on standard MODBUS
networks using the following transmission modes: ASCII or RTU. Using the
Communication Protocol parameter (P9.02), you can select the desired mode,
data bits, parity, and stop bits. The mode and serial parameters must be the same
for all devices on a MODBUS network.
GS1 RS-485 Serial Comm Port
GS1 Serial Comm Port
RS-485 Interface
RJ12 (6P4C)
6
1
1:
2:
3:
4:
5:
6:
+17V
GND
SGSG+
nc
reserved
GS1 drives have a provision for shutting down control or power to the inverter in the
event of a communications time out. This feature can be set up through parameters
P9.03, P9.04, and P9.05.
Common Third-Party MODBUS RTU Masters
• MODSCAN from www.wintech.com
• KEPSERVER EX 4.0 from www.kepware.com
• Entivity Studio 7.2
• Think & Do Live 5.5.1
For additional technical assistance, go to our Technical support home page at:
http://support.automationdirect.com/technotes.html
5–64
GS1 Series AC Drive User Manual
2nd Edition
07/06/2011