IAI America REXT - Manual (Page 40)

Part 1 Specification
Chapter 3 Gateway R unit
24
Part 1 Specification
3.4.2 DeviceNet
Item Specification
Power supply 24 VDC r 10%
Current consumption 600 mA max. (*1)
An interface module certified under DeviceNet 2.0 is used.
Group 2 only server
Communication protocol
Network-powered isolated node
Bit strobe
Polling
Communication specification Master-slave connection
Cyclic
Baud rate 500k/250k/125k [bps] (Set by a ROBONET gateway parameter)
Baud rate
Maximum network
length
Maximum branch
length
Total branch
length
500 kbps 100 m 39 m
250 kbps 250 m 78 m
125 kbps 500 m
6 m
156 m
Communication cable length (*1)
Note) When a thick DeviceNet cable is used.
Number of occupiable nodes 1 node
D
ev
ic
eN
et
s
pe
ci
fic
at
io
n
Communication power supply Voltage: 24 VDC (Supplied from DeviceNet)
Current consumption: 60 mA
Transmission path configuration IAI’s dedicated multi-drop differential communication
Communication method Half-duplex
Synchronization method Asynchronous method
Transmission path type 2-wire method corresponding to EIA RS485
Baud rate 230.4k [bps]
Error control method CRC with no parity bit (*2)
Communication cable ROBONET communication connection circuit board (supplied), ROBONET
extension cable (when an extension unit is used) S
IO
c
om
m
un
ic
at
io
n
sp
ec
ifi
ca
tio
n
Number of connectable units 16 axes max.
Ambient operating temperature 0 to 40qC
Ambient operating humidity 95% RH max. (non-condensing)
Operating ambience Free from corrosive gases, flammable gases, oil mist or powder dust.
Storage temperature -25 to 70qC
Storage humidity 95% RH max. (non-condensing)
Vibration resistance XYZ directions:
10 to 57 Hz, half amplitude – 0.035 mm (continuous) / 0.075 mm (intermittent)
57 to 150 Hz – 4.9 m/s 2 (continuous) / 9.8 m/s 2 (intermittent)
E
nv
iro
nm
en
t c
on
di
tio
ns
Impact resistance XYZ directions:
147 mm/s 2 , 11 ms, half-sine wave pulse
Protection degree IP20
Weight Approx. 140 g
External dimensions 34 W x 105 H x 73.3 D [mm]
*1: For T-branching communication, refer to the operation manuals of the master unit and the PLC installed in the master unit.
*2: CRC: Cyclic Redundancy Check
A data error detection method frequently used for synchronous transmission.
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