Denso RC5 Specifications download pdf (Page 81)

9.2.2 General Specifications

(1) Environmental requirements

Item Specifications

Power requirements 5 VDC (supplied via the controller ISA bus)

Operating temperature 0 to 40°C

Operating humidity 90% RH or less (without condensation)

(2) DeviceNet communications specifications

Item Specifications

Communications protocol DeviceNet–compliant

Connection supported - Polling I/O function

- Bit strobe function

Compliant with DeviceNet communication rules

Connection type (Note 1) Multi-drop type with possible combination of T-branch

(to trunk and branch lines)

Bit rate 500, 250, 125 kbps (selectable by switch)

Communications media Special cable consisting of 5 wires

(2 for signals, 2 for power supply, and 1 as a shield wire)

Bit rate Max. network length Branch length

Total branch

length

500 kbps 100 m or less (Note 2) 6 m or less 39 m or less

250 kbps 250 m or less (Note 2) 6 m or less 78 m or less

Communications cable length

125 kbps 500 m or less (Note 2) 6 m or less 156 m or less

Power supply for communication External supply of 24 VDC ±10%

Internal power consumption Communication power source: 30 mA max.

Max. number of connectable nodes 64

Number of I/Os - Input 1024 points

- Output 1024 points

Error check CRC

(Note 1) Terminator resistors are needed at both ends of the trunk cable.

(Note 2) These values may apply when a special thick cable is used as a trunk line. If a special fine cable is used, the max.

network length is 100 m or less.

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Denso RC5 Specifications Page 81