DL8000 Preset Instruction Manual
Revised February-2016 Communications Protocols D-15
D.3 Communications Commands
This section details all commands the Modbus and DanLoad 6000
protocols support.
D.3.1 Modbus Commands
You use Modbus commands when using the register-mapped Modbus
protocol. Table D-1 lists the executable commands available in the
Modbus protocol. These commands are called “executables” since they
force the DL8000 to perform certain kind of activities. The table also
specifies the operation mode in which each command is valid.
Table D-1. Modbus Executable Commands
Cmd No
(decimal)
Cmd No
(hex)
Command Name
Operating modes
[Auto/Manual]
1 1 Prompt Recipe Auto
3 3 Prompt Additives Auto
5 5 Timeout Operation Auto
6 6 Authorize Transaction Auto
7 7 End Transaction Auto
8 8 Prompt Preset Volume Auto
10 A Authorize Batch Auto
13 D End Batch Auto
14 E Start/Restart Batch Auto
15 F Stop Batch Auto
19 13 Clear Status Auto
20 14 Reset Primary Alarms Auto
28 1C Display Message Auto
41 29 Set Date and Time Auto/Manual
48 30 Reset Unit Auto/Manual
55 37 Change Operating Mode Auto/Manual
56 38 Clear Display Auto
61 3D Report Alarm Auto/Manual
The following sections describe all the commands supported in the
Modbus protocol, including the supporting parameters required for the
execution of each command, status flags changed during each
command, and exceptions checked.
When using Modbus, you use function codes to write the data for
respective parameters required for the execution of commands in
advance before issuing the command to the DL8000. Refer to the
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