Omron E5 R Selection Manual page 11

DeviceNet
Item
Communications protocol
Communications func- Remote I/O communi-
tions cations
I/O allocations
Message communica-
tions
Connection format
Baud rate
Communications media
Communications distance
Supply voltage
Allowable voltage range
Current consumption
Maximum number of nodes that can be con-
nected
Maximum number of slaves that can be con-
nected
Error control
Power supply
Conforms to DeviceNet
• Master-slave connections (polling, bit-strobe, COS, or cyclic)
• Conform to DeviceNet specifications.
• Can allocate any I/O data from the Configurator.
• Can allocate any data, such as parameters specific to the DeviceNet and the Digital Control-
ler variable area.
• Up to 2 blocks for the IN Area, up to a total of 100 words.
• One block for the OUT Area, up to 100 words (first word is always allocated to Output Enable
Bits).
• Explicit message communications
• CompoWay/F communications commands can be sent (commands are sent in explicit mes-
sage format).
Combination of multidrop and T-branch connections (for trunk and drop lines)
DeviceNet: 500, 250, or 125 kbps, or automatic detection of master baud rate
Special 5-wire cable (2 signal lines, 2 power lines, and 1 shield line)
Baud rate Network length
500 kbps 100 m max. (100 m max.)
250 kbps 250 m max. (100 m max.)
125 kbps 500 m max. (100 m max.)
The values in parentheses apply when Thin Cables are used.
DeviceNet power supply: 24 VDC
DeviceNet power supply: 11 to 25 VDC
50 mA max. (24 VDC)
64 (includes Configurator when used)
63
CRC error detection
Power supplied from DeviceNet communications connector.
Specifications
Drop line length
6 m max.
6 m max.
6 m max.
Digital Controllers
Total drop line length
39 m max.
78 m max.
156 m max.
E5AR
11