Spectrum-controls 1734sc-OE2CIH Manuel d'utilisateur télécharger pdf (Page 58)

4-22 Chapter 4: OE2CIH and HART

User’s Manual Pub. 0300272-01 Rev. A.0

Table 4-15 Ladder Get Device Information (Service Code = 0×4D)

Unconnected Message

Field

Value

Definition

Message Type

CIP Generic

Service Code

0×4D

Get Device

Information

Class Name

0×035D

HART Object

Instance Name

1 no n

Selects channel n-1

Object Attribute

None, leave this field blank

Request Size

No Request Data

Reply Size

2-120 bytes

(2) Size when Device information not

available

(120) Size when valid Device Information

returned

Number of Data

bytes returned

Request Data

HART Get Device Information - Request packet structure

Request Size = 0

Offset

Field

Value

Definition

No Request Data

Request Failed Response

HART Get Device Information - Reply packet structure

Reply Size = 2

Offset

Field

Value

Definition

Status

34 = DR_RUNNING

35 = DR_DEAD

Command status

Pad

Pad byte

Request Succeeded Reply

HART Get Device Information - Reply packet structure

Reply Size = 120 bytes

Offset

Field

Value

Definition

Status

00 = SUCCESS

Command status

HARTManufID_EdtMSB

(1 byte)

CMD#0, Byte 1

HARTDeviceType_EdtLSB

(1 byte)

CMD#0, Byte 2

HARTPreamble

(1 byte)

CMD#0, Byte 3

HARTUnivCmdCode

(1 byte)

CMD#0, Byte 4

HARTTransSpecRev

(1 byte)

CMD#0, Byte 5

HARTSoftwareRevision

(1 byte)

CMD#0, Byte 6

HARTHardwareRevision

(1 byte)

CMD#0, Byte 7

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 73 74

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