16
Control
Example:
aTB 200
(set the batch volume to 200 [volume units] for instrument A)
Totalizer Configuration
To read the current totalizer configuration
:
unit_id
TC
To set the current totalizer configuration
:
unit_id
TC
limit_mode
limit_mode
is the action when the totalizer reaches the maximum allowed value:
Value
Description
0
Keep totalizer value at the maximum value and do not indicate an OVR error.
1
Reset totalizer value to zero and do not indicate an OVR error.
2
Keep totalizer value at the maximum value and indicate an OVR error.
3
Reset totalizer value to zero and indicate an OVR error.
Example:
aTC 1
(when the totalizer for instrument A reaches max, reset the
total volume to zero and do not indicate an OVR error)
Full Scale Flow
To read a full scale value
:
unit_id
FPF
value
value
is the instrument measurement to read full scale:
Value Requested Value
0
Full scale flow
1
Largest total volume/totalizer batch
2
Maximum temperature
Example:
aFPF 2
(returns the max temperature for Instrument A)
The data returned will be:
unit _ id value units
where
units
is a text string indicating the units for the full scale measurement.
Unit ID
Each instrument has a unique, single-letter ID using the standard 26-letter English alphabet
(e.g., A, B, C, etc.). The default ID is “A”. If more than one instrument on a COM port has the
same ID, data and commands become corrupted and do not report or execute properly.
When connecting multiple instruments on the same COM port, connect one instrument at a
time. Provide a unit ID command for each instrument before connecting the next instrument.
To give the most recently connected instrument an unused ID:
To change the unit id:
unit_id
@
new_id
Serial Number
Each instrument has a unique serial number.
To read the serial number
:
unit_id
SN
Version Number
Each firmware release has a unique number.
To read the firmware version number
:
unit_id
VE
MODBUS Address
The MODBUS address is the ID to which the instrument will respond when using MODBUS
communications (see
).
