The TM218LDA40DR4PHN controller is equipped with 2 analog inputs.
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FIRE HAZARD |
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Use only the correct wire sizes for the current capacity of the power supplies. |
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Failure to follow these instructions will result in death or serious injury. |
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UNINTENDED EQUIPMENT OPERATION |
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Do not exceed any of the rated values specified in the environmental and electrical characteristics tables. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
The table below describes the characteristics of the Modicon M218 Logic Controller analog inputs:
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Characteristic |
Voltage input |
Current input |
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Number of maximum input channel |
2 |
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Input type |
Single-ended |
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Input range |
-10... +10 Vdc/0...+10 Vdc |
0...20 mA/4...20 mA |
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Input impedance |
> 1 MΩ |
250 ± 5% Ω |
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Connectable I/O terminals |
Removable terminals |
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Sample duration time |
10 ms per channel + 1 scan time |
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Total input system transfer time |
20 ms + 1 scan time |
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Input tolerance |
Maximum deviation at 25 °C (77 °F) without electromagnetic disturbance |
± 1% of the full scale |
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Maximum deviation |
± 2.5% of the full scale |
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Digital resolution |
12 bits, including sign |
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Temperature drift |
± 0.06% of the full scale |
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Common mode characteristics |
80 db |
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Cross talk |
60 db |
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Non-linearity |
± 0.4% of full scale |
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Input value of LSB |
5 mV |
10 μΑ |
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Maximum allowed overload (no damages) |
±30 Vdc (less than 5 minutes) ±15 Vdc (No damage) |
±30 mA dc |
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Protection type |
Photo coupler between input and internal circuit |
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Cable |
Type |
Shielded |
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Length |
3 m (9.84 ft) NOTE: Compliance to electromagnetic immunity standards is limited to a 3 m (9.84 ft) cable length. In all cases, a maximum cable length of 10 m (32.80 ft) should not be exceeded. |
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The following illustration shows the wiring diagram of the Modicon M218 Logic Controller analog inputs:
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UNINTENDED EQUIPMENT OPERATION |
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oUse shielded cables for all fast I/O, analog I/O, and communication signals. oGround cable shields for all fast I/O, analog I/O, and communication signals at a single point1. oRoute communications and I/O cables separately from power cables. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
1Multipoint grounding is permissible if connections are made to an equipotential ground plane dimensioned to help avoid cable shield damage in the event of power system short-circuit currents.
For more information, refer to the TM218 System Wiring Rules and Recommendation.
If you have physically wired the analog channel for a voltage signal and you configure the channel for a current signal in EcoStruxure Machine Expert, you may damage the analog circuit.
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NOTICE |
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INOPERABLE EQUIPMENT |
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Verify that the physical wiring of the analog circuit is compatible with the software configuration for the analog channel. |
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Failure to follow these instructions can result in equipment damage. |
