Appendix a, Specifications, Communications – Rockwell Automation 20-COMM-M Modbus/TCP Adapter User Manual
Page 75: Electrical, Mechanical, Aspecifications, Appendix

20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
Appendix
A
Specifications
Appendix A presents the specifications for the adapter.
Communications
Electrical
Mechanical
Topic
Page
Network
Protocol
Data Rates
Connection Limits
Requested Packet Interval (RPI)
Packet Rate
Modbus/TCP
10 Mbps Full Duplex
10 Mbps Half Duplex
100 Mbps Full Duplex
100 Mbps Half Duplex
30 TCP connections
16 simultaneous CIP messaging connections and 1 Modbus/
TCP I/O connection
•
Explicit messaging-based control using PCCC or the
Register or Assembly objects
•
Explicit messaging where “connected” is NOT chosen,
which is typically the default
•
DriveExplorer connections to the drive
•
DriveExecutive connections to the drive
5 ms minimum
Up to 400 total I/O packets per second (200 in and 200 out)
Drive
Protocol
Data Rates
DPI
125 kbps or 500 kbps
Consumption
Drive
Network
350 mA at 5 VDC supplied by the host (drive or DPI External
Comms Kit)
None
Dimensions
Height
Length
Width
19 mm (0.75 inches)
86 mm (3.39 inches)
78.5 mm (3.09 inches)
Weight
85 g (3 oz.)