DCP200 Profile Controller & Recorder - Product Manual

Parameter Name

Modbus Address

Access

Values

 

(Dec)

(Hex)

 

 

Current Segment

8238

0x202E

RO

The remaining time for the current profile segment

Remaining Time

 

 

 

 

Total Hold Time

8239

0x202F

RO

Total time the current profile has been held

Current Segment

8240

0x2030

RO

The number of times the current looping segment has

Loops Run

 

 

 

looped back

Profile Setup

8198

0x2006

R/W

Refer to the Profile Setup Over Modbus

 

 

 

 

information below

Profile Setup Via Modbus

The information in this section is intended for advanced users writing their own software code. Most users will create or edit profiles using the instrument keypad, or using the the PC software (available from your supplier). Either method allows quick and easy editing of profiles.

Advanced users can setup or edit profiles by writing to the Profile Configuration parameter at address 8198 (0x2006). This can only be accessed by using Modbus function code 23 (0x17). The instrument replies with a status message.

When creating a new profile the steps below must be followed exactly, either to create a profile at the next available position, or at a position that you specify.

Each message in the sequence includes a 2 byte Command Code that tells the instrument the purpose of the message, and therefore the meaning of the data contained in it.

Instruction Sequence to create a profile at the next available position

1.Create a profile by writing the profile header data using the Command Code value CP (0x43, 0x50). This starts the profile creation process by reserving a profile memory slot. The profile number is returned by the instrument in the Edit Response Message.

2.Write the first segment using the Command Code value Code WS (0x57, 0x53). This command will fill the next available segment position and link it to the profile created in step 1.

3.Write the second segment, again using Command Code WS. This fills the next available segment position and links it to the segment created in step 2.

4.Continue writing segments until the profile is complete (whilst remaining within the overall limit of 255 segments for all profiles combined). Each of these segments fills the next available position and links it to the previous segment specified.

5.The very last segment of the profile must be one of the end type segments. Thereafter, no more segments can be added to the specified profile. To add a segment to an existing profile the insert segment command must be used.

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Modbus Parameters

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Honeywell DCP200 manual Profile Setup Via Modbus

DCP200 specifications

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