Scada Redi; Figure 5-44. Reset Target Led's Via Modbus Network Control - ABB TPU2000 Technical Manual

Bit 14 Reserved
Bit 15 Reserved (msb)
** = Version 4.10 TPU Flash Executive and Modbus Version 1.80 Firmware or Greater Required for this feature
Figure 5-44 illustrates the command sequence for performing a Reset Target Alarms via the Modbus Network.
Although the example illustrates that Registers 41410 through 41415 are written in one group, it is possible to
send multiple registers in a group or single registers to completely configure this block. It is important that the
execute command (data value = 1 in Register 41410) be sent last to initiate the Trip action on the breaker. Also
all registers may be sent as one continuous block to effectuate control. Performing a write, read (to verify control
action requested) and execute register write, allows the implementer to have check before operate control.

Figure 5-44. Reset Target LED's Via Modbus Network Control

SCADA REDI®
In any substation installation, commissioning the installation can be an exceptionally time-consuming procedure.
This capability can consume up to 2 days per IED tested. ABB TPU2000 and TPU2000R relays have the
capability to allow a read only 4X registers to be forced from a personal computer through the relay's
communication port. Figure 5-45 illustrates the typical TPU2000 and TPU2000R memory map.
TPU2000/2000R Modbus/Modbus Plus Automation Guide
EXAMPLE 1 - Reset Targets via a Modbus Command Sequence.
STEP 1 -
Host sends following register contents
to Reset Targets ( Assumed that default
password of all spaces is active).
41411 = 2020 hex (Password Hi)
41412 = 2020 hex (Password Lo)
41413 = 0 (Reserved)
41414 = 0100 hex ( Reset Target bit To Change)
41415 = 0100 hex ( Reset Target bit to value of 1).
E C
Command
Sequence Through
Modbus Command 16
Preset Multiple Holding Registers
E C
The Relay Responds
over the network that
the data has been
accepted. If data has
not been accepted, an
exception response is
generated
STEP 2 -
The host sends the register execute
command to the following address
with the following contents.
41410 = 0001 hex
E C
Command
Sequence Through
Modbus Command 16
Preset Multiple Holding Registers
E C
The Relay logically "ANDS" the
register 41414 and 41415. If the
result of the logical operation is a "1"
for the operation, then the relay performs the operation.
The Relay performs the Reset Operation
command in one quarter cycle.
The Relay then responds to the
request received over the network.
If the registers are not configured correctly to
perform the operation, a Modbus exception
response is generated upon response to the host.
137