Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 16)

Publication 1760-UM003A-EN-P - September 2005
2-4 Installation
Figure 1.4 Shield Connection to the Mounting Plate
Potential Isolation The following potential isolation specifications apply to 1760-DNET
interfaces:
Data Transfer Rates –
Automatic Baud Rate
Recognition After it is switched on, the 1760-DNET module automatically detects
the data transfer rate of the communication network. However, this is
possible only if at least one network node transmits valid message
frames. The device supports the following data transfer rates
according to ODVA:
• 125 kbps,
• 250 kbps,
• 500 kbps,
Maximum Distances and Bus Cable Lengths
The max. bus length is not determined by the data transfer rate, but
rather by the cable used. The following cables are permitted:
• Thin Cable,
• Thick Cable
1 Safe electrical isolation between PicoLink and the 240 VAC mains
2 Simple electrical isolation to the DeviceNet communication bus
3 Power supply 24 V DC
a
c
b
+ –