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Yokogawa DX Serial Driver
2. Addresses that have Write Only access are assigned a default access of Read/Write. However, data
values are unreadable for these addresses and the associated tags are not included in the scan list.
The current data value for these tags will always be 0 for numeric data types and null string for string
data types.
DX220 Addressing
The driver supports the following addresses for this device. The default data type for each address type is
shown in
bold
.
Measured Channels
Address Type
Format
Range
Data Type
Access
Process Value of Channel
CHxx or CHxx.PV
01-20
Double
, Float
Read Only
Alarm Summary of Channel
CHxx.Alarm
01-20
Short
, Word, Byte
Read Only
Alarm Level1 Status of Channel
CHxx.Alarm1
01-20
Short
, Word, Byte
Read Only
Alarm Level2 Status of Channel
CHxx.Alarm2
01-20
Short
, Word, Byte
Read Only
Alarm Level3 Status of Channel
CHxx.Alarm3
01-20
Short
, Word, Byte
Read Only
Alarm Level4 Status of Channel
CHxx.Alarm4
01-20
Short
, Word, Byte
Read Only
Set and Read Level1 Alarm Setpoint
CHxx.ASP1
01-20
Double
, Float
Read/Write
Set and Read Level2 Alarm Setpoint
CHxx.ASP2
01-20
Double
, Float
Read/Write
Set and Read Level3 Alarm Setpoint
CHxx.ASP3
01-20
Double
, Float
Read/Write
Set and Read Level4 Alarm Setpoint
CHxx.ASP4
01-20
Double
, Float
Read/Write
Upper Scale Value of Channel*
CHxx.scale_Hi
01-20
Double
, Float
Read Only
Lower Scale Value of Channel*
CHxx.scale_Lo
01-20
Double
, Float
Read Only
Unit String of Channel*
CHxx.unit
01-20
String
Read Only
Tagname of Channel*
CHxx.tag
01-20
String
Read Only
Status of Channel*
CHxx.status
01-20
String
Read Only
Lowest Measuring Channel*
CH.Low
Short
, Word, Byte
Read Only
Highest Measuring Channel*
CH.High
Short
, Word, Byte
Read Only
Math Channels
Address Type
Format
Range
Data Type
Access
Process Value of Math Channel
CHxx or CHxx.PV
31-60
Double
, Float
Read Only
Alarm Summary of Math Channel
CHxx.Alarm
31-60
Short
, Word, Byte
Read Only
Alarm Level1 Status of Math Channel
CHxx.Alarm1
31-60
Short
, Word, Byte
Read Only
Alarm Level2 Status of Math Channel
CHxx.Alarm2
31-60
Short
, Word, Byte
Read Only
Alarm Level3 Status of Math Channel
CHxx.Alarm3
31-60
Short
, Word, Byte
Read Only
Alarm Level4 Status of Math Channel
CHxx.Alarm4
31-60
Short
, Word, Byte
Read Only
Set and Read Level1 Alarm Setpoint
CHxx.ASP1
31-60
Double
, Float
Read/Write
Set and Read Level2 Alarm Setpoint
CHxx.ASP2
31-60
Double
, Float
Read/Write
Set and Read Level3 Alarm Setpoint
CHxx.ASP3
31-60
Double
, Float
Read/Write
Set and Read Level4 Alarm Setpoint
CHxx.ASP4
31-60
Double
, Float
Read/Write
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