The TM3AI8 (screw terminal block) / TM3AI8G (spring terminal block) expansion module feature 8 analog input channels with 12-bit resolution.
The channel input types are:
o0...10 V
o-10...+10 V
o0...20 mA
o4...20 mA
o0...20 mA extended
o4...20 mA extended
For information on the diagnostic codes produced by each input type, refer to Analog I/0 Modules Diagnostics.
For further hardware information, refer to TM3AI8 / TM3AI8G.
NOTE: 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. |
For each input, you can define:
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Parameter |
Value |
Default Value |
Description |
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|---|---|---|---|---|
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Type |
Not used, 0 - 10 V, -10 - +10 V, 0 - 20 mA, 4 - 20 mA, 0 - 20 mA extended, 4 - 20 mA extended. |
Not used |
Choose the mode of the channel. |
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Min. |
0 - 10 V |
-32768...327671 |
0 |
Specifies the lower measurement limit. |
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-10 - +10 V |
-10000 |
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0 - 20 mA |
0 |
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4 - 20 mA |
4000 |
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0 - 20 mA extended2 |
0 |
Not editable. |
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4 - 20 mA extended2 |
1200 |
Not editable. |
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Max. |
0 - 10 V |
-32768...327671 |
10000 |
Specifies the upper measurement limit. |
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-10 - +10 V |
10000 |
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0 - 20 mA |
20000 |
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4 - 20 mA |
20000 |
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0 - 20 mA extended2 |
23540 |
Not editable. |
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4 - 20 mA extended2 |
23170 |
Not editable. |
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Input Filter |
0...1000 |
0 |
Specifies the first order filter time constant (0...10 s) in increments of 10 ms. |
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Sampling |
1ms/Channel 10ms/Channel |
1ms/Channel |
Specifies the sampling period of the channel. If an input filter is active, sampling is set internally to 1 ms. |
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Status Enabled |
Yes No |
Yes |
Enables the diagnostic byte of each channel. If the status is disabled (value = No), the status bytes IBStatusIWx do not contain relevant information. |
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1 The 12-bit data (0 to 4095) processed in the analog I/O module can be linear-converted to a value between -32768 and 32767.
2 The extended ranges are supported by modules from product version (PV) 03, firmware version (SV) 1.4.
Variables can be defined and named in the I/O Mapping tab. Additional information such as topological addressing is also provided in this tab.
This table describes the I/O Mapping tab:
|
Variable |
Channel |
Type |
Description |
|---|---|---|---|
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Inputs |
IW0 |
INT |
Current value of the input 0 |
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IW1 |
INT |
Current value of the input 1 |
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IW2 |
INT |
Current value of the input 2 |
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IW3 |
INT |
Current value of the input 3 |
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IW4 |
INT |
Current value of the input 4 |
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IW5 |
INT |
Current value of the input 5 |
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IW6 |
INT |
Current value of the input 6 |
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IW7 |
INT |
Current value of the input 7 |
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Diagnostic |
IBStatusIW0 |
BYTE |
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IBStatusIW1 |
BYTE |
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IBStatusIW2 |
BYTE |
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IBStatusIW3 |
BYTE |
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IBStatusIW4 |
BYTE |
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IBStatusIW5 |
BYTE |
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IBStatusIW6 |
BYTE |
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IBStatusIW7 |
BYTE |
For further generic descriptions, refer to I/O Mapping Tab Description.
