Omron E3NW-CCL, User Manual

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5 E3NW-CCL Hardware Specifications
5 - 2 E3NW-CCL CC-Link Digital Sensor Communications Unit User’s Manual (E431)
5-1 CC-Link Communications
Specifications
This section gives the communications specifications of the E3NW-CCL Sensor Communications Unit.
Item Specification
Communications protocol CC-Link protocol
Communications method
Broadcast polling
Baud rate 156 Kbps, 625 kbps, 2.5 Mbps, 5 Mbps, 10 Mbps
Physical layer Bus (Conforms to EIA RS-485.)
Topology Daisy chain (T-junctions are allowed.)
Communications media CC-Link cable
Communications distance
Distance between stations: 20 cm min.
Maximum cable length
With baud rate of 156 Kbps: 1,200 m
With baud rate of 625 Kbps: 900 m
With baud rate of 2.5 Mbps: 400 m
With baud rate of 5 Mbps: 160 m
With baud rate 10 Mbps: 100 m
Noise immunity Conforms to IEC 61000-4-4, 1 kV or higher.
Address setting method Decimal rotary address switch
Address range
64 max., must meet the following conditions:
1) Total Number of Stations
(a+a2+a4+a8)+(b+b2+b4+b8)×2+(c+c2+c4+c8)×3+(d+d2+d4+d8)×4
≤ 64
2) Total Number of Remote I/O
(a×32+a2×32+a4×64+a8×128)+(b×64+b2×96+b4×192+b8×384)
+(c×96+c2×160+c4×320+c8×640)+(d×128+d2×224+d4×448+d8×896)
≤
8192
3) Total Number of Remote Registers
(a×4+a2×8+a4×16+a8×32)+(b×8+b2×16+b4×32+b8×64)
+(c×12+c2×24+c4×48+c8×96)+(d×16+d2×32+d4×64+d8×128)
≤ 2048
a: Number of single-setting units allocated one station
b: Number of single-setting units allocated two stations
c: Number of single-setting units allocated three stations
d: Number of single-setting units allocated four stations
a2: Number of double-setting units allocated one station
b2: Number of double-setting units allocated two stations
c2: Number of double-setting units allocated three stations
d2: Number of double-setting units allocated four stations
a4: Number of quadruple-setting units allocated one station
b4: Number of quadruple-setting units allocated two stations
c4: Number of quadruple-setting units allocated three stations
d4: Number of quadruple-setting units allocated four stations
a8: Number of octal-setting units allocated one station
b8: Number of octal-setting units allocated two stations
c8: Number of octal-setting units allocated three stations
d8: Number of octal-setting units allocated four stations
4) Number of Connected Nodes
16×A+54×B+88×C
≤
2304
A: Number of remote I/O stations (64 max.)
B: Number of remote device stations (42 max.)
C: Number of local stations and intelligent device stations (26 max.)