Specifications

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Modicon
™
Momentum
™
automation platform
Discrete I/O bases
Specications for discrete I/O bases
Type of base unit 170 ADM 370 10 170 ADM 850 10
Number of points Inputs 4 x 4 1 x 16
Outputs 2 x 4 1 x 16
Operating voltage Vdc 24 12, 24, 48 (10…60)
Internal current mA 250 @ 24 Vdc (plus current for sensors) 500 @ 12 Vdc
250 @ 24 Vdc
125 @ 48 Vdc
Inputs Voltage Vdc 24 12, 24, 48
Type of signal True high
Voltage at 1 Vdc + 11…+ 30 > 7.5 @ 12 Vdc
> 11 @ 24 Vdc
> 30 @ 48 Vdc
Voltage at 0 Vdc - 3…+ 5 < 2.5 @ 12 Vdc
< 5 @ 24 Vdc
< 10 @ 48 Vdc
Input current mA 2.5 min. at state 1 (6 mA at c 24 V),
1.2 max. at state 0
2.3 @ 12 Vdc
2.7 @ 24 Vdc
2.9 @ 48 Vdc
Input voltage range Vdc - 3…+ 30 10…60 V
Input resistance
kW
4 –
Response time Off to On ms 2.2 In, < 1 Out 2.2 In, < 2.5 Out
On to Off ms 3.3 In, < 1 Out 3.3 In, < 2.5 Out
Fault sensing –
Outputs Voltage Vdc 24, 30 max. 12, 24, 48, 60 max.
Type Solid state switch
Type of signal True high
Current capacity A 2 per point
8 per group
16 per module
0.5 per point
8 per group @ 50 °C
7 per module @ 60 °C
Leakage current mA < 1 @ 24 Vdc < 1 @ 60 Vdc
Peak current A 2.8 for 1 ms 5 for 1 ms
On state voltage drop Vdc – < 1 @ 0.5 A
Detected error indication Output overload for at least one output or
short-circuit or overload on one of the 4
encoder supply groups, to communication
adapter
Output overload for at least one output to
communication adapter
Response time ms < 0.1 Off to On, < 0.1 On to Off
Potential isolation Input to input None
Output to output group None
Input to output group V None 707 DC
Field to communication interface Vrms 500 AC 707 DC
Power dissipation Typical W 6.5 6.0 + (0.144 x nb of input points)
+ (0.25 x nb of output points)
Maximum W 10.0 –
Agency approvals UL, e, CSA UL, e, CSA, FM Class I, Div. II
Description:
page 12
References:
page 19
Dimensions, mounting:
page 20
Wiring diagrams:
pages 20 to 25
Specications (continued)