DE-3000 IOI 7-17
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18.7 If it is desired to read more than one record, the read command can be sent in
succession with a different record number. The time between read commands
should be one second or longer.
18.8 The first fault data log record can be read remotely if a current fault exists in the
controller. Send the following ASCII command for the first fault data log:
>(01 DL 999)
01 is the node number and should match the controller. 999 is where the cur-
rent first fault is located. If this command is sent with no faults on the controller,
it will respond with NO DATA AVAILABLE.
18.9 The most current data can be read remotely by sending the following ASCII com-
mand:
>(01 DL 000)
18.10 The DE-3000 system can be reset or stopped remotely by sending a serial com-
mand string.
REMOTE RESET >(01 AUTO)
REMOTE STOP >(01 STOP)
18.11 The DE-3000 is compliant to the Modicon Modbus RTU standard. The DE-3000
only supports register reads; data is duplicated for the 30000’s and 40000’s
address range. Maximum number of registers that can be read at one time has
been limited to 32.
18.12 IDENTIFICATION
In addition to the above, the DE-3000 will respond to function code 17 with an
identification string as follows:
Query:
NN 17 CRC CRC
Where:
NN = node number, 17 = ID function code, CRC CRC = two byte Modbus RTU
CRC.
Response:
NN 17 07 D E - 3 0 0 0 CRC CRC
Where:
NN = node number, 17 = ID function code, 07 = number of bytes to follow, DE-
3000 (seven byte ASCII ID string ), CRC CRC = two byte Modbus RTU CRC
18.13 REMOTE STOP/RESET
Register 40999 can be written to remotely trigger the stop and reset functions.
It will respond to a single write only (function code 06). The stop command is
0x53AC. The reset command is 0x41BE.
18.14 PORT 4
Not active. Reserved for future use.
18.15 PORT 5
Not active. Reserved for future use.
18.16 REMOTE OPERATOR INTERFACE
The DE-3000 has a feature called the Remote Operator Interface (ROI) that can
be accessed through function code 20. This feature makes it possible for any
function normally accessible locally on the keypad to be implemented remotely
via Modbus. Since the response to the Key Press commands automatically re-
turns the current display on the device, a possible conflict between local and
remote control authorities can be readily avoided and the actual device status
on the display is known at both locations.
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