K3HB-V
DeviceNet Communications
Communications protocol
Conforms to DeviceNet
Supported communi- Remote I/O communications
cations
Master-Slave connection (polling, bit-strobe, COS, cyclic)
Conforms to DeviceNet communications standards.
I/O allocations
Allocate any I/O data using the Configurator.
Allocate any data, such as DeviceNet-specific parameters and variable area for Digital
Indicators.
Input area: 2 blocks, 60 words max.
Output area: 1 block, 29 words max.
(The first word in the area is always allocated for the Output Execution Enabled Flags.)
Explicit message communications
Message communications
CompoWay/F communications commands can be executed (using explicit message
communications)
Connection methods
Baud rate
Combination of multi-drop and T-branch connections (for trunk and drop lines)
DeviceNet: 500, 250, or 125 Kbps (automatic follow-up)
Communications media
Communications distance
Special 5-wire cable (2 signal lines, 2 power supply lines, 1 shield line)
Baud rate
500 Kbps
Network length Drop line length
Total drop line
length (max.)
(max.)
(max.)
100 m (100 m)
6 m
6 m
39 m
250 Kbps
100 m
78 m
(250 m)
125 Kbps
100 m
6 m
156 m
(500 m)
The values in parentheses are for Thick Cable.
24-VDC DeviceNet power supply
11 to 25-VDC DeviceNet power supply
50 mA max. (24 VDC)
Communications power supply
Allowable voltage fluctuation range
Current consumption
Maximum number of nodes
Maximum number of slaves
Error control checks
64 (DeviceNet Configurator is counted as one node when connected)
63
CRC errors
DeviceNet power supply
Supplied from DeviceNet communications connector
■ Internal Block Diagram
Input
circuit
Analog input
Keys
ADC
Indications
EEP-ROM
BCD
• Input circuit
Drive
circuit
Transistor
output
BCD I/O
Drive
circuit
• Output circuit
• Transistor
output circuit
Micro-
computer
Drive
circuit
Digital input
circuit
Waveform
shaping circuit
Event input
X
Relay output
DeviceNet
Drive
circuit
DeviceNet
circuit
Linear output
circuit
Drive
circuit
Linear output
Communi-
cations
driver
Drive
circuit
Sensor power
supply
Filter
VO
Communications
VDD
VCOM
VO
DC-DC
Power supply circuit (isolated)
Converter (isolated)
Power supply
6
OMRON [ OMRON ELECTRONICS LLC ]
