Installation
Serial Communications Specifications
Max baud rate 19.2k
Start bit 1
Stop bit
Parity none
Data 8
Modbus Communications
The E Series Drive's serial communication protocol is Modbus RTU slave with
a 32 bit data extension. The Modbus protocol is available on most operator
interface panels and PLC's.
Emerson Motion Control's Motion Interface panels are supplied with a Modbus
master communications driver.
Multi-Drop Communications
The RS-485 option (pins 4 and 9) is provided for multi-drop configurations.
EMERSON provides a special multi-drop serial cable which allows you to
easily connect two or more E Series Drives.
AT 91t. J4
senai coon
I
RX (2321, 2
TX (232)! 3
1
Ground it 5
Figure 37
45
16,1 '51qH
DDS.XXx Serial Cable
The lorminaling resistors should
I be installed on the last EN Drive
In the string
terms Ming liesisloi Block
EMC Model TERM-7
Multi-Drop Wiring Diagram with RS-232 master
41