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E149721
C - 3
C: DNP Mapping
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
communication port will accept Modbus RTU frames only. To make this port go back
to DNP protocol, the unit must be powered down and up. Section C.7 shows the
constructed frame to perform DNP to Modbus RTU protocol change.
C.5: Error Reply
In the case of an unsupported function, or any other recognizable error, an error reply
is generated from the Shark® 200S meter to the Primary station (the requester). The
Internal Indicator field will report the type of error: unsupported function or bad
parameter.
The broadcast acknowledge and restart bit are also signaled in the Internal Indicator
field, but they do not indicate an error condition.
C.6: Shark
®
200S Meter’s DNP Register Map
Object 10 - Binary Output States
Object 12 - Control Relay Outputs
Object
Point
Var
Description
Format
Range
Multiplier
Units
Comments
10
0
2
Reset Energy
Counters
BYTE
Always 1
N/A
None
Read by Class 0 or with
qualifier 0, 1, 2, or 6
10
1
2
Change to
Modbus RTU
Protocol
BYTE
Always 1
N/A
None
Read by Class 0 or with
qualifier 0, 1, 2, or 6
10
2
2
Reset Demand
Cntrs (Max /
Min )
BYTE
Always 1
N/A
None
Read by Class 0 or with
qualifier 0, 1, 2, or 6
Object
Point
Var
Description
Format
Range
Multiplier
Units
Comments
12
0
1
Reset Energy
Counters
N/A
N/A
N/A
none
Responds to Function 5
(Direct Operate), Quali-
fier Code 17x or 28x,
Control Code 3, Count 0,
On 0 msec, Off 1 msec
ONLY.
12
1
1
Change to
Modbus RTU
Protocol
N/A
N/A
N/A
none
Responds to Function 6
(Direct Operate - No
Ack), Qualifier Code
17x, Control Code 3,
Count 0, On 0 msec, Off
1 msec ONLY.
Содержание Shark 200S
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