Difference between revisions of "AI8.1"

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| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Measured <br /> Voltage <br /> Values''' </span>  
 
| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Measured <br /> Voltage <br /> Values''' </span>  
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| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Measured <br /> Current <br /> Values''' </span>  
 
| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Measured <br /> Current <br /> Values''' </span>  
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| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Setting <br /> Input <br /> Ranges ''' </span>
 
| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Setting <br /> Input <br /> Ranges ''' </span>
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| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''States of <br /> Relay <br /> Outputs ''' </span>
 
| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''States of <br /> Relay <br /> Outputs ''' </span>
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|  Inputs || DI#16 - DI#01 || u16 || R || 0x0000 - 0x000F || 3001
 
|  Inputs || DI#16 - DI#01 || u16 || R || 0x0000 - 0x000F || 3001
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<!-- MODBUS "Relay Outputs" registers table -->
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| rowspan="8" style="width: 90px;" | <span style="font-size: 17px;"> '''Relay <br /> Outputs ''' </span>
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|| Relay Output 1 || DO#01 || bit || RW || rowspan="4" | 0 = inactive <br /> 1 = active || 4001
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| style="width: 100px;" | Relay Output 2 || DO#02 || bit || RW || 4002
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|  Relay Output 3 || DO#03 || bit || RW || 4003
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|  Relay Output 4 || DO#04 || bit || RW || 4004
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|  Outputs || DO#16 - DO#01 || u16 || RW || 0x0000 - 0x000F || 4001
 
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Revision as of 12:19, 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
Subject Channel Type R/W Value Offset
States of
Relay
Outputs 		COIL Relay 1 DI#01 bit R 0 = inactive
1 = active 		3001
COIL Relay 2 DI#02 bit R 3002
COIL Relay 3 DI#03 bit R 3003
COIL Relay 4 DI#04 bit R 3004
Inputs DI#16 - DI#01 u16 R 0x0000 - 0x000F 3001
Subject Channel Type R/W Value Offset
Relay
Outputs 		Relay Output 1 DO#01 bit RW 0 = inactive
1 = active 		4001
Relay Output 2 DO#02 bit RW 4002
Relay Output 3 DO#03 bit RW 4003
Relay Output 4 DO#04 bit RW 4004
Outputs DO#16 - DO#01 u16 RW 0x0000 - 0x000F 4001
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