Lighthouse Handheld 2016 - Command Register

Lighthouse HANDHELD 2016, 3016, 5016 Gen F Operating Manual
C-6
248083400-1 Rev 7
Command
Register
The Command Register (40002) is used to make the device perform an
action. The register performs an action when an integer value is written
to it. The action is completed when the device sends a MODBUS
response. When this register is read, it always returns a zero.
3 DEVICE ERROR: In the event that there is a failure on
the device, this bit is set to indicate possible invalid data
collected. An example of a device error could be a
positioning error on a manifold device.
Table C-4 Device Status
Bit Description
Table C-5 Command Register
Value Action
1 Saves all writable 4xxxx register values to the device’s EEPROM.
2 Reserved for future use.
3 Clears the Data Buffer. Record count is set to zero.
4 Saves the instrument parameters in the 40xxx registers to the
EEPROM. Parameters include Sample Time, Hold Time, and Initial
Delay.
5 Enable Remote Control. Locks out the instrument’s user interface.
Can only change instrument parameters via MODBUS.
6 Enable Local Control. Unlocks the instrument’s user interface.
Instrument changes can be made at the device itself or through
MODBUS.
7 Turns local pump on, if applicable. Flow is regulated by an internal
setpoint.
8 Stop pump, if applicable.
9 Manual Start.
The instrument samples continuously until it receives a Manual
Stop command. Ignores local timing parameters. Sets Sample
Time for data record to equal the time interval between the Manual
Start and Manual Stop command. If applicable to device, does not
start pump.
10 Manual Stop.
Stops sampling. Records count since Manual Start.