YOKOGAWA DX Series User Manual

Yokogawa DX Serial Driver
Address Type Format Range Data Type Access
Status of Channel* CHxx.status 01-04 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 31-38 Double, Float Read Only
Alarm Summary of Math Channel CHxx.Alarm 31-38 Short, Word, Byte Read Only
Alarm Level1 Status of Math Channel CHxx.Alarm1 31-38 Short, Word, Byte Read Only
Alarm Level2 Status of Math Channel CHxx.Alarm2 31-38 Short, Word, Byte Read Only
Alarm Level3 Status of Math Channel CHxx.Alarm3 31-38 Short, Word, Byte Read Only
Alarm Level4 Status of Math Channel CHxx.Alarm4 31-38 Short, Word, Byte Read Only
Set and Read Level1 Alarm Setpoint CHxx.ASP1 31-38 Double, Float Read/Write
Set and Read Level2 Alarm Setpoint CHxx.ASP2 31-38 Double, Float Read/Write
Set and Read Level3 Alarm Setpoint CHxx.ASP3 31-38 Double, Float Read/Write
Set and Read Level4 Alarm Setpoint CHxx.ASP4 31-38 Double, Float Read/Write
Upper Scale Value of Math Channel* CHxx.scale_Hi 31-38 Double, Float Read Only
Lower Scale Value of Math Channel* CHxx.scale_Lo 31-38 Double, Float Read Only
Unit String of Math Channel* CHxx.unit 01-38 String Read Only
Tagname of Math Channel* CHxx.tag 01-38 String Read Only
Status of Math Channel* CHxx.status 01-38 String Read Only
Lowest Math Channel* CHA.Low Short, Word, Byte Read Only
Highest Math Channel* CHA.High Short, Word, Byte Read Only
*Data associated with these addresses are only read from the device at the start of a communications
session. Once read, the values will not be refreshed until the server has been restarted or the "Reset" tag
has been invoked. To invoke a reset, a non-zero value must be written to the Reset tag. Once the Reset tag
has been invoked the driver will reinitialize all startup data from the device.
Alarm Setpoints
Data values for Alarm Setpoints that are undefined in the device will be returned as +INF. Data values can
only be written to Alarm Setpoints that are defined in the device. Write operations to undefined Alarm
Setpoints will return an error. Write operations are available only for users logged in at the Administrator
level and will return an error otherwise. Alarm setpoint values are read one channel at a time. For devices
with a large number of channels, increasing the scan rate of ASP items and/or reducing the number of active
ASP items will increase the read performance of the PV and alarm data.
Scales
Data values for Scale_Hi and Scale_Lo for channels that are skipped will be returned as +INF.
Tag Names
For devices that do not support tag names and channels that have unspecified tag names, the driver will
construct an internal tag name based on the channel number. For example, the tag name of address 'CH01'
will be returned as 'CH01'.
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YOKOGAWA DX Series Specifications

General

Brand	YOKOGAWA
Model	DX Series
Category	Measuring Instruments
Language	English