semaphore TBOX LT2-530 Series, User Manual, Page: 126 / 197

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13.3.2. Writing Tag with Direct addressing ( W )
You write a value or a text directly to a ModBus address.
Syntax:
#Wmodbus address=value#
#Wmodbus address=”text”#
Examples:
#W20480=123#
This message sent to the RTU will write value 123 to the analog Tag with ModBus address 20480
#W1500=”jean@tbox.be”#
This message sent to the RTU will the text “jean@tbox.be” to the Text Tag with ModBus address 1500.
This can be useful for changing online runtime parameters (see chapter 9.5. “Runtime Parameters”)
Notes:
1. You can combine several adresses, separated by a comma. For instance:
#W20480=123,W20481=456#
2. ReadSMS checks access protection level of the port before writing (see chapter 13.3.5. below)
13.3.3. Writing Tag with Indirect addressing – analog ( N )
You write a value directly to a ModBus address representing a pointer.
Syntax:
#Nmodbus address=value#
The value at ‘modbus address’ corresponds to the ModBus address to write in.
Example:
#N20480=123#
If ModBus address 20480 contains the value 1000, the value 123 will be written to the ModBus address
1000.
We make a distinction between Target address corresponding to an analog Tag and a digital
Tag (see next).
With indirect addressing, ReadSMS does no check the access protection level of the GSM
port
13.3.4. Writing Tag with Indirect addressing - digital ( D )
You write a value directly to a ModBus address representing a pointer.
Syntax:
#Dmodbus address=value#
The value at ‘modbus address’ corresponds to the ModBus address to write in.
Example:
#D20481=1#
If ModBus address 20481 contains the value 512, the value 1 will be written to the ModBus address 512.