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Wiring Diagram


Analog Ccurrent Pparameters

Current Input Range Selection Table

Current input range selection and code value range
Range selection Range Code value range Current input formula Current output formula
0 Disable, indicating the channel is not enabled
1 4mA~20mA 0~65535 D=(65535/16)*I-16384 I=(D+16384)*16/65535
2 (Default) 0mA~20mA 0~65535 D=(65535/20)*I I=(D*20)/65535
3 4mA~20mA 0~27648 D=(27648/16)*I-6912 I=((D+6912)*16)/27648
4 0mA~20mA 0~27648 D=(27648/20)*I I=(D*20)/27648
5 -20mA~+20mA 0~65535 D=(65535/40)*(I+20) I=(D*40)/65535-20

Note: “D” represents code value, and “I” represents current. The default range for analog current input terminal is 2: 0mA~20mA (0~65535).

Range 5: -20mA~+20mA (0~65535) is unique to the current input differential signal module.

Current Output Range Selection Table

Current output range selection and code value range
Range selection Range Code value range Current input formula Current output formula
0 Disable, indicating the channel is not enabled
1 4mA~20mA 0~65535 D=(65535/16*I)-16384 I=(D+16384)*16/65535
2 (Default) 0mA~20mA 0~65535 D=(65535/20)*I I=(D*20)/65535
3 4mA~20mA 0~27648 D=(27648/16)*I-6912 I=((D+6912)*16)/27648
4 0mA~20mA 0~27648 D=(27648/20)*I I=(D*20)/27648

Note: “D” represents the code value, and “I” represents the current. The default range for analog current output terminals is 2: 0mA~20mA (0~65535).

 

Current Input Code Value Table

Current 4mA~20mA 0mA~20mA 4mA~20mA 0mA~20mA -20mA~+20mA
0~65535 0~65535 0~27648 0~27648 0~65535
Code value Code value Code value Code value Code value
-20 - - - - 0
-15 - - - - 8192
-10 - - - - 16384
-9 - - - - 18022
-8 - - - - 19661
-7 - - - - 21299
-6 - - - - 22937
-5 - - - - 24576
-4 - - - - 26214
-3 - - - - 27852
-2 - - - - 29491
-1 - - - - 31129
0 - 0 - 0 32768
1 - 3277 - 1382 34406
2 - 6554 - 2765 36044
3 - 9830 - 4147 37683
4 0 13107 0 5530 39321
5 4096 16384 1728 6912 40959
6 8192 19661 3456 8294 42598
7 12288 22937 5184 9677 44236
8 16384 26214 6912 11059 45875
9 20479 29491 8640 12442 47513
10 24575 32768 10368 13824 49151
11 28671 36044 12096 15206 50790
12 32767 39321 13824 16589 52428
13 36863 42598 15552 17971 54066
14 40959 45875 17280 19354 55705
15 45055 49151 19008 20736 57343
16 49151 52428 20736 22118 58982
17 53247 55705 22464 23501 60620
18 57343 58982 24192 24883 62258
19 61439 62258 25920 26266 63897
20 65535 65535 27648 27648 65535
20.19 - - 28034 27917 -
20.24 - - 28085 27986 -
Code value formula Code value = 65535/16 * current - 16384 Code value = (65535/20) * current Code value = (27648/16) * current - 6912 Code value = (27648/20) * current Code value = (65535/40) * (current + 20)

Note: Range 5: -20mA~+20mA (0~65535) is unique to the current input differential signal module.

①When the current input terminal range is 4mA~20mA (0~65535), it supports overflow/underflow and overflow alarm functions. That is, when the channel input current is greater than 20.03mA, it displays the maximum code value 65535 is displayed and gives an alarm at the same time; When the input current of the input channel is less than 4mA, it displays the minimum code value  0.

② When the current input terminal range is selected from 0mA to 20mA (0 to 65535), it supports overflow/underflow and overflow alarm functions. That is, when the channel input current is greater than 20.03mA, it displays the maximum code value 65535 and gives an alarm at the same time.; When the input channel current is less than 0mA, it displays the minimum code value 0.

③ When the current input terminal range is 4mA~20mA (0~27648), it supports overflow overshoot, overflow/underflow, and overflow alarm functions. Overshoot means that when the channel input range exceeds the range and enters overshoot, it displays a normal calculated code values within 4mA~20.24mA. Overflow means that when the channel input current exceeds 20.24mA, it displays the maximum overshoot code value 28085 and gives an alarm. Underflow means that when the input channel current is below 4mA, it displays the minimum overshoot code value 0.

④ When the current input terminal range is 0mA~20mA (0~27648), it supports overflow overshoot, overflow/underflow, and overflow alarm functions. Overshoot means that when the channel input range exceeds the range, it displays a normal calculated code value within 0mA~20.24mA. Overflow means that when the channel input current exceeds 20.24mA, it displays the maximum overshoot code value 27986 and gives an alarm at the same time. Underflow means that when the input channel current is below 0mA, it displays the minimum overshoot code value 0.

⑤ When the current input terminal range is -20mA~+20mA (0~65535), it supports overflow/underflow and overflow alarm functions. That is, when the channel input current is greater than 20mA, the module displays the maximum code value 65535 and gives an alarm at the same time.;  When the input channel input current is less than -20mA, the module displays the minimum code value 0.

 

Current Output Code Value Table

Current 4mA~20mA 0mA~20mA 4mA~20mA 0mA~20mA
0~65535 0~65535 0~27648 0~27648
Code value Code value Code value Code value
0 - 0 - 0
1 - 3277 - 1382
2 - 6554 - 2765
3 - 9830 - 4147
4 0 13107 0 5530
5 4096 16384 1728 6912
6 8192 19661 3456 8294
7 12288 22937 5184 9677
8 16384 26214 6912 11059
9 20479 29491 8640 12442
10 24575 32768 10368 13824
11 28671 36044 12096 15206
12 32767 39321 13824 16589
13 36863 42598 15552 17971
14 40959 45875 17280 19354
15 45055 49151 19008 20736
16 49151 52428 20736 22118
17 53247 55705 22464 23501
18 57343 58982 24192 24883
19 61439 62258 25920 26266
20 65535 65535 27648 27648
22.81 - - 32511 31538
23.52 - - - 32511
Code value formula Code value = 65535/16 * current - 16384 Code value = (65535/20) * current Code value = (27648/16) * current - 6912 Code value = (27648/20) * current

Note: ① When the current output terminal range is selected as 4mA~20mA (0~27648) and 0mA~20mA (0~27648), it supports overflow overshoot, overflow and overflow alarm functions. That’s, when the current output terminal range is selected as 4mA~20mA (0~27648) and the code value is set above 32511, all channels output 22.81mA current and give an alarm at the same time. When the current output terminal range is selected as 0mA~20mA (0~27648) and the code value is set above 32511, all channels output 23.52mA current and give an alarm at the same time.

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Last modified: 2025-11-06