Yokogawa DX Serial Driver
Address Type Format Range Data Type Access
Model Name of Device* Model String Read Only
Math Communication Data* CDxx 01-04 Float Read/Write
Control Math Execution MathControl Short, Word, Byte Write Only
Reset Alarms AlarmReset Boolean Write Only
Control Command and Response Command String Read/Write
Previous Screen PreScreen Boolean Write Only
Direct Reloading of Configuration Reset Boolean Write Only
*The Admin address type has a value of '1' or 'true' when the user has logged on at the Administrator level
and a value of '0' or 'false' when the user has logged on at the User level.
Math Communication Data
The CD address type is only valid for devices equipped with the math option and write operations to CD
addresses for non-math equipped devices will return an error. Write operations are available only for users
logged in at the Administrator level and will return an error otherwise. Note that CD addresses are initialized
(read) at startup and will not be reread unless the server is restarted or the Reset tag is invoked. For more
information, refer to Note on Initialized Data.
Model Name of Device
The Model address type will have a string value of 'DX100' or 'DX200', indicating the model series returned
by the device.
Control Math Execution
The MathControl address type is only available for devices equipped with the math option; otherwise, write
operations to the MathControl tag for non-math equipped devices will return an error.
Control Command and Response
The Command address allows the user to send a string command and receive a string response to and from
the device. This allows the user to send any command to the device, including commands not directly
supported by the driver. This tag is only available to users logged in at the Administrator level; otherwise,
write operations will return an error.
Caution: Write operations using the Command address should be performed with extreme care.
Notes:
1. The actual number of addresses available for of each type depends on the configuration of the
Yokogawa device. If the driver finds at Runtime that an address is not present in the device, it will post
an error message and remove the tag from its scan list.
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.
DX104 Addressing
The driver supports the following addresses for this device. The default data type for each address type is
shown in bold.
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