Get Device Information (Service Code = 0x4D)
Get Device Information is outlined as follows.
Unconnected Message
Field | Value | Definition |
|---|---|---|
Message Type | ”CIP Generic” | |
Service Code | 0x4D | Get Device Information |
Class Name | 0x035D | HART Object |
Instance Name | 1-16 | Selects channel |
Object Attribute | None; leave this field blank | |
Request Size | 0 | 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
Offset | Field | Value | Definition |
|---|---|---|---|
No Requested Data |
Request Size = 0
Request Failed
The HARTIOM responds with these messages.
Offset | Field | Value | Definition |
|---|---|---|---|
0 | Status | 34 = DR_RUNNING 35 = DR_DEAD | Command status |
1 | Pad | 0 | Pad byte |
Reply Size = 2
Request Succeeded
The HARTIOM responds with these messages.
Offset | Field | Value | Definition |
|---|---|---|---|
0 | Status | 00 = SUCCESS | Command status |
1 | HART ManufID_EdtMSB | (1 byte) | CMD#0, Byte 1 |
2 | HARTDeviceType_EdtLSB | (1 byte) | CMD#0, Byte 2 |
3 | HARTPreamble | (1 byte) | CMD#0, Byte 3 |
4 | HARTUnivCmdCode | (1 byte) | CMD#0, Byte 4 |
5 | HARTTransSpecRev | (1 byte) | CMD#0, Byte 5 |
6 | HARTSoftwareRevision | (1 byte) | CMD#0, Byte 6 |
7 | HARTHardwareRevision | (1 byte) | CMD#0, Byte 7 |
8 | HARTFlags | (1 byte) | CMD#0, Byte 8 |
9 | Pad_1 for 32 bit alignment | (1 byte) | |
10-11 | HART ManufacturerID16Bit | (2 byte) | CMD#0, Byte 1 if HART rev < 7 CMD#0, Bytes 17-18 if HART rev >= 7 |
12-15 | HARTDeviceIDNumber | (4 bytes - UINT) | CMD#0, Bytes 9-11 Bytes re-ordered into Intel Format(LSB 1st ) from HART format(MSB 1st). |
16-19 | TagSize | 8 (4 bytes) | |
20-27 | TagString | (8 bytes unpacked ASCII) | CMD#13, Bytes 0-5 |
28-31 | DescriptorSize | 16 (4 bytes) | |
32-47 | DescriptorString | (16 bytes unpacked ASCII) | CMD#13, Bytes 6-17 |
48 | DateDay | (1 byte) | CMD#13, Byte 18 |
49 | DateMonth | (1 byte) | CMD#13, Byte 19 |
50-51 | DateYear | (2 bytes) | CMD#13, Byte 20 (+ 1900) |
52-55 | FinalAssemblyNumber | (4 bytes - UINT) | CMD#16, Bytes 0-2 Bytes re-ordered into Intel Format(LSB 1st) from HART Format(MSB 1st). |
56-59 | MessageSize | 32 (4 bytes) | |
60-91 | MessageString | (32 bytes unpacked ASCII) | CMD#12, Bytes 0-23 |
92 | PVCode | (1 byte) | CMD#50, Bytes 0, 0xff if not supported |
93 | SVCode | (1 byte) | CMD#50, Bytes 1, 0xff if not supported |
94 | TVCode | (1 byte) | CMD#50, Bytes 2, 0xff if not supported |
95 | FVCode | (1 byte) | CMD#50, Bytes 3, 0xff if not supported |
96 | PVUnits | (1 byte) | CMD#3, Byte 4 |
97 | SVUnits | (1 byte) | CMD#3, Byte 9, 0 if not present |
98 | TVUnits | (1 byte) | CMD#3, Byte 14, 0 if not present |
99 | FVUnits | (1 byte) | CMD#3, Byte 19, 0 if not present |
100 | TransferFunction | (1 byte) | CMD#15, Byte 1 |
101 | RangeUnits | (1 byte) | CMD#15, Byte 2 |
102-103 | ExpandedDeviceTypeCode | (2 bytes) | CMD#0, Byte 2 if HART Rev < 7 CMD#0, Bytes 1-2 if HART Rev >= 7 |
104-107 | HARTPVLowerRange | (4 bytes - Floating Point Value) | CMD#15, Bytes 3-6 |
108-111 | HARTPVUpperRange | (4 bytes - Floating Point Value) | CMD#15, Bytes 7-10 |
112-115 | DampingValue | (4 bytes - Floating Point Value) | CMD#15, Bytes 11-14 |
116 | WriteProtectCode | (1 byte) | CMD#15, Byte 15 |
117 | Pad_2 for alignment | (1 byte) | |
118-119 | PrivateLabelMfg16Bit | (2 bytes) | CMD#0, Byte 1 if HART Rev < 7 CMD#0, Bytes 19-20 if HART Rev >=7 |
Reply Size = 120 bytes
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