General Specifications - Epson RC620 Manual

1. Introduction

1.2.3 General Specifications

DeviceNet Communication Specifications
Supported Connection
Baud Rates
Transfer Distance
Maximum Nodes
Data Length / Frame
Bus Access
Error Detection
Cable
Communications
Power Supply Voltage
* When thin cable is used for trunk line, the maximum network length is 100 m.
4
Item
- I/O messaging connection
(Polling, Strove, Cyclic, Change of State)
- Explicit messaging connection
All connections are conformed to DeviceNet
communication protocol.
125 kbps, 250 kbps, 500 kbps
Baud Rates
0 kbps
250 kbps
125 kbps
64 (including master unit)
8 byte (data can be divided and transferred.)
CSMA/NBA
CRC error / Duplicate node address check
5-wire cable dedicated to DeviceNet (2 wires for signal,
2 wires for power supply, 1 shield wire)
24 V DC (supplied from a connector)
Specification
Max. Network
Drop Length
Length
10 m 6m or under
250 m * 6 m or under
500 m * 6 m or under
RC620 Option Fieldbus I/O Rev.8
Total Drop
Line Length
39 m or under
78 m or under
156 m or under