Gocator 2300 & 2880 Series
Protocols • Modbus Protocol • 344
The output registers report the sensor states, stamps, and measurement values and decisions. You can
read multiple output registers using a single Read Holding Registers or a single Read Input Registers
command. Likewise, you can control the state of the sensor using a single Write Multiple Register
command.
Control registers are write-only, and output registers are read-only.
Register Address Name Read/Write Description
0 - 124 Control Registers WO
Registers for Modbus commands. See Control
Registers below for detailed descriptions.
300 - 899 Sensor States RO
Report sensor states. See State on the next page for
detailed descriptions.
900 - 999 Stamps RO Return stamps associated with each profile or
surface. See State on the next page for detailed
descriptions.
1000 - 1060 Measurements &
Decisions
RO 20 measurement and decision pairs. See
Measurement Registers on page 346 for detailed
descriptions.
Register Map Overview
Control Registers
Control registers are used to operate the sensor. Register 0 stores the command to be executed.
Registers 1 to 21 contain parameters for the commands. The Gocator executes a command when the
value in Register 0 is changed. To set the parameters before a command is executed, you should set up
the parameters and the command using a single Multiple Write register command.
Register
Address
Name Read/Write Description
0 Command Register WO Command register. See the Command Register
Values table below for more information.
1 – 21 Job Filename WO Null-terminated filename.
Each 16-bit register holds a single character.
Only used for Load Job Command.
Specifies the complete filename, including the file
extension ".job".
Control Register Map
The values used for the Command Register are described below.
Value Name Description
0 Stop running Stop the sensor. No effect if sensor is already stopped.
1 Start Running Start the sensor. No effect if sensor is already started.
2 Align (stationary target) Start the alignment process. State register 301 will be set to 1 (busy)
Command Register Values
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