Difference between revisions of "IF-15"

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! colspan="2" | Subject !! style="width: 110px;" | Channel !! style="width: 30px;" | Type !! style="width: 30px;" | R/W !! style="width: 230px;" | Value !! style="width: 60px;" | Offset
 
! colspan="2" | Subject !! style="width: 110px;" | Channel !! style="width: 30px;" | Type !! style="width: 30px;" | R/W !! style="width: 230px;" | Value !! style="width: 60px;" | Offset
 
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| rowspan="4" style="width: 90px;" | <span style="font-size: 17px;"> '''IF-15(G) <br /> States of <br /> Inputs''' </span>  
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| rowspan="5" style="width: 90px;" | <span style="font-size: 17px;"> '''IF-15(G) <br /> States of <br /> Inputs''' </span>  
 
|| Open Collector 1 || DO#33 || bit || RW || rowspan="4" | 0 = inactive <br /> 1 = active || 4033
 
|| Open Collector 1 || DO#33 || bit || RW || rowspan="4" | 0 = inactive <br /> 1 = active || 4033
 
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| Open Collector 4 || DO#36 || bit || RW || 4036
 
| Open Collector 4 || DO#36 || bit || RW || 4036
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|-
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| Outputs || DI#33 - DI#48 || u16 || R || 0x0000 - 0x000F ||
 
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Latest revision as of 05:48, 17 April 2020

Modbus Registers

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

Modbus Read / Write (0x17) Function

METEL IO modules have implemented the 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) Writing 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 reading and writing 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

Note: The MODBUS address is the same as the address of the main device of which the IF module is part.


Subject Channel Type R/W Value Offset
IF-15(G)
States of
Inputs
Open Collector 1 DO#33 bit RW 0 = inactive
1 = active
4033
Open Collector 2 DO#34 bit RW 4034
Open Collector 3 DO#35 bit RW 4035
Open Collector 4 DO#36 bit RW 4036
Outputs DI#33 - DI#48 u16 R 0x0000 - 0x000F