Epson RC90 User Manual

1. Introduction
RC700 / RC90 Option Fieldbus I/O Rev.14 5
1.2.3 General Specifications
DeviceNet Communication Specifications
Item
Specification
Supported
Connection
- I/O messaging connection
(Polling, Strove, Cyclic, Change of State)
- Explicit messaging connection
All connections are conformed to DeviceNet
communication protocol.
Baud Rates
125 kbps, 250 kbps, 500 kbps
Transfer Distance
Baud Rates
Max. Network
Length
Drop Length
Total Drop
Line Length
500 k (bps)
100 m
6 m or under
39 m or under
250 k (bps)
250 m *
6 m or under
78 m or under
125 k (bps)
500 m *
6 m or under
156 m or under
Maximum Nodes
64 (including master unit)
Data Length / Frame
8 bytes (data can be divided and transferred.)
Bus Access
CSMA/NBA
Error Detection
CRC error / Duplicate node address check
Cable
5-wire cable dedicated to DeviceNet
(2 wires for signal, 2 wires for power supply, 1 shield wire)
Communications
Power Supply
Voltage
24 V DC (supplied from a connector)
* When thin cable is used for trunk line, the maximum network length is 100 m.

Epson RC90 Specifications

General

Brand	Epson
Model	RC90
Category	Controller
Language	English