Despatch Protocol 3 Modbus Communications Manual do Utilizador descarregar pdf (Página 43)

Modbus Programming Manual ADDRESS LIST

Version 2 43

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Segment Type

Segment Info

Description

1 = Time of day

Start Time

Wait until time of the day “B” in seconds since

midnight.

Loop

Number of times to

repeat 1 to 9999

Segment number

Loop to the specified segment number “B” from this

point. Repeat this “A” times. Only segments below the

current segment can be entered. Two loops must not

cross each other.

Join

Null

Profile number

On completion of this profile jump run profile “B”

End

0 = Control off

Null

Turn off all control outputs.

1 = Maintain profile

setpoint

Null

Stay at the final setpoint of the profile

2 = Control off with

events

Null

Turn off the outputs but maintain the events.

Repeat

Sequence Then

End

0 = Outputs off

Number of times to

repeat sequence

Repeat the profile sequence number “B” times, then

turn off the control outputs

1 = Maintain profile

setpoint

Repeat the profile sequence number “B” times, then

hold the last profile setpoint.

2 = Control off with

events

Turn off the outputs but maintain the events.

2.9.5.6. Deleting Profiles (Command Code DP and DA)

An individual profile can be deleted, or all profiles can be cleared with a single message.

Deleting a profile removes the header of the specified profile and any segments associated with it.

Delete all profiles wipes all profiles and segments from the instrument.

Delete Profiles - Request (to instrument)

Field Name

Data

Comments

(Dec)

(Hex)

Unit Address

A/R

The ID address of the instrument.

Function Code

Requires the multi read/write function

Read Start Address High Byte

Read Start Address Low Byte

Read Quantity Of Registers High

Read Quantity Of Registers Low

Write Start Address High

Write Start Address Low

Write Quantity Of Registers High

Write Quantity Of Registers Low

02 or 01

Delete A Profile (DP) = 02dec / 0x02hex

Delete All Profiles (DA) = 01dec / 0x01hex

Byte Count

04 or 02

Delete A Profile (DP) = 04dec / 0x04hex

Delete All Profiles (DA) = 02dec / 0x02hex

Command Code High Byte

Delete A Profile (DP) = 17488dec /

0x4450hex

Delete All Profiles (DA) = 17473dec /

0x4441hex

Command Code Low Byte

80 or 65

50 or 41

Profile Number High Byte

A/R

Note: The profile number is not included

in the message when deleting all profiles.

Profile Number Low Byte

A/R

CRC High Byte

A/R

CRC Low Byte

A/R

The instrument replies to this message with an Edit Response Message Section 2.9.5.9.

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 51 52

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