Difference between revisions of "AI8.1"

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Stop bits: 1 <br />
 
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<!-- MODBUS "Measured Voltage Values" registers table -->
 
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<!-- MODBUS Measured Current Values registers table -->
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|  Analog Input 8 || AI#18 || s16 || R || 5018
 
|  Analog Input 8 || AI#18 || s16 || R || 5018
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<!-- MODBUS "Setting Input Ranges" registers table -->
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{| class="wikitable"
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|- style="font-size: 17px;"
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! colspan="2" | Subject !! Channel !! Type !! R/W !! Value !! Offset
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| rowspan="8"| <span style="font-size: 17px;"> '''Setting <br /> Input <br /> Ranges ''' </span>
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|| Analog Input 1 || AI#21 || u16 || RW || rowspan="8"| 1 = ±10 V / ±30 mA <br /> 2 = ±5 V / ±20 mA <br /> 3 = ±2.5 V / ±10 mA <br />
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(1) - Default
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|| 5121
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|-
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|  Analog Input 2 || AI#22 || u16 || RW || 5122
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|-
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|  Analog Input 3 || AI#23 || u16 || RW || 5123
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|-
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|  Analog Input 4 || AI#24 || u16 || RW || 5124
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|-
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|  Analog Input 5 || AI#25 || u16 || RW || 5125
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|-
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|  Analog Input 6 || AI#26 || u16 || RW || 5126
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|-
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|  Analog Input 7 || AI#27 || u16 || RW || 5127
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|-
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|  Analog Input 8 || AI#28 || u16 || RW || 5128
 
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Revision as of 11:01, 18 July 2018

Modbus Registers

Below is a list of available device MODBUS registers. The same register numbers are also used by the MIOS-2 protocol.

Modbus Read / Write (0x17) Function

METEL IO modules have implemented MODBUS function (0x17) Read/Write of Multiple registers. Typically it is required to have two separate requests (and responses) for: 1) Writing of outputs via MODBUS function (0x16) Write Multiple Registers 2) Reading of inputs via MODBUS function (0x03) Read Holding Registers This requires a total of 4 frames to be sent over MODBUS. If using 0x17 function only one request is needed for the writing and reading of outputs. This requires a total of 2 frames to be sent over MODBUS.

Default Settings of Communication

Device ID: 1
Baudrate: 115 200
Parity: None
Data bits: 8
Stop bits: 1

Subject Channel Type R/W Value Offset
Measured
Voltage
Values
Analog Input 1 AI#01 s16 R 1000 = 1 V
0 = 0 V
-1000 = -1 V
32767 = upper range limit exceeded
-32767 = lower range limit exceeded
5001
Analog Input 2 AI#02 s16 R 5002
Analog Input 3 AI#03 s16 R 5003
Analog Input 4 AI#04 s16 R 5004
Analog Input 5 AI#05 s16 R 5005
Analog Input 6 AI#06 s16 R 5006
Analog Input 7 AI#07 s16 R 5007
Analog Input 8 AI#08 s16 R 5008
Subject Channel Type R/W Value Offset
Measured
Current
Values
Analog Input 1 AI#11 s16 R 1000 = 1 V
0 = 0 V
-1000 = -1 V
32767 = upper range limit exceeded
-32767 = lower range limit exceeded
5011
Analog Input 2 AI#12 s16 R 5012
Analog Input 3 AI#13 s16 R 5013
Analog Input 4 AI#14 s16 R 5014
Analog Input 5 AI#15 s16 R 5015
Analog Input 6 AI#16 s16 R 5016
Analog Input 7 AI#17 s16 R 5017
Analog Input 8 AI#18 s16 R 5018
Subject Channel Type R/W Value Offset
Setting
Input
Ranges
Analog Input 1 AI#21 u16 RW 1 = ±10 V / ±30 mA
2 = ±5 V / ±20 mA
3 = ±2.5 V / ±10 mA

(1) - Default

5121
Analog Input 2 AI#22 u16 RW 5122
Analog Input 3 AI#23 u16 RW 5123
Analog Input 4 AI#24 u16 RW 5124
Analog Input 5 AI#25 u16 RW 5125
Analog Input 6 AI#26 u16 RW 5126
Analog Input 7 AI#27 u16 RW 5127
Analog Input 8 AI#28 u16 RW 5128