Tripp-Lite S3M25-100kVA Manual Del Propietário página 19

2. MODBUS Protocol Description
Definition
1. Read Device ID Code (ReadDevID)
Read Device ID Code
01
02
03
04
2. Object ID
Object ID
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07 ... 0x7F
Private objects may be optionally defined.
0x80 ... 0xFF The range [0x80 – 0xFF] is product
3. Conformity Level
Conformity Level
0x01
0x02
0x03
0x81
0x82
0x83
In case of ReadDevID codes 01, 02 or 03 (stream access), if the identification data doesn't fit into a single response, several
request/response transactions may be required:
• 00: no more objects are available
• FF: other identification objects are available and further MODBUS transactions are required. In case of ReadDevID code 04
(individual access), this field must be set to 00.
Example of a Read Device Identification request for "Basic device identification:" in this example, all information is sent in one
response PDU.
Request to get the basic device identification (stream access)
Request to get the regular device identification (stream access)
Request to get the extended device identification (stream access)
Request to get one specific identification object (individual access)
Object Name / Description
VendorName
ProductCode
MajorMinorRevision
VendorUrl
ProductName
ModelName
UserApplicationName
Reserved
dependent.
Basic Identification (stream access and individual access)
Regular Identification (stream access and individual access)
Extended Identification (stream access and individual access)
Definition
Type
ASCII String
ASCII String
ASCII String
ASCII String
ASCII String
ASCII String
ASCII String
Relate to Equip
Definition
Basic Identification (stream access only)
Regular Identification (stream access only)
Extended Identification (stream access only)
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M/O Category
Mandatory
Mandatory
Mandatory
Optional
Optional
Optional
Optional
Device Dependent Extended
Basic
Regular