Figure 5-21. Momentary Change Detect Status Example - ABB TPU2000 Technical Manual

TPU2000/2000R Modbus/Modbus Plus/ Modbus TCP/IP Automation Guide
Notes Register
Address
3 10657: 50G Status
3 10658: 50G Momentary
3 10659: 150G Status
3 10660: 150G Momentary
3 10661: ECI3 Status
3 10662: ECI3 Momentary
3 10663: Reserved
3 10664: Reserved
3 10665: Reserved
3 10666: Reserved
3 10667: Reserved
3 10668: Reserved
3 10669: Reserved
3 10670: Reserved
3 10671: Reserved
3 10672: Reserved
3= Three Winding TPU Only
Application Example: Obtain Winding 1 Phase Time and Winding 2 Phase Time (51P-1 and 51P-2 Status).
The relay status is available from inputs 10517 through 10520 using Momentary Change Detect Bits. Figures 5-
21 and 5-22 illustrate the polling sequence and raw data returned over the network utilizing function code 02
using Momentary change detect notification.
Item
Ground Time Instantaneous Control Enabled (Status)
Ground Time Instantaneous Control Enabled (Momentary)
nd
2 Ground Time Instantaneous Control Enabled (Status)
nd
2 Ground Time Instantaneous Control Enabled (Momentary)
Event Capture Initiate Enabled (Status)
Event Capture Initiate Enabled (Momentary)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Function 02 - Read Input Status
Example - Read Breaker Status 51P-1 and 51P-2.
Although only 4 data bits are needed, 16 shall be
read starting from 10513.
Host Sends : 01 02 02 04 00 10 78 7E
Node Addr = 01
Function = 02
Data Address = 513 ( which is 512 [ Modbus is offset by 1] in hex =0200)
Amount of Data Requested = 16 Inputs
CRC-16 Checksum = 78 7E
Relay Responds: 01 02 02 61 01 51 E8
Addr = 01
Function = 02
Data Bytes Received = 2
Data Received = 61 01
CRC - 16 Checksum = 51 E8

Figure 5-21. Momentary Change Detect Status Example

Description
Modbus Slave Addr =1
E C
Read from
1X Mapping
Modbus RTU Mode Used
70