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5 Control Registers (I/O 15)
Use control messages to start device-level actions.
Each DX80 device allocates 16 registers, with registers one through six reserved for inputs and nine through 14 reserved
for outputs. Registers 7, 8, 15, and 16 are reserved for warnings, error messages, and control operations. The control
messages use the device’s register 15. Some control messages are device specific, depending on the action required.
Typically, control messages are used to start a device level action, like ‘reset device’ (0x0100). The 0x1000 command code
sent to an M-GAGE ™ device register 15 performs a baseline function on that M-GAGE.
5.1 Control Codes
The register word is made up of two parts, the control code in the upper byte and the data field in the lower byte. Some
control codes do not have a data field. For these control codes, use 0x00 as the data field.
Node Reg 15 Control Code [15:8] Data Field [7:0]
I/O 15 Control Messages
Control Code
in Hex (Dec)
Data Field in
Hex (Dec)
Control Code
and Data Field
in Decimal
Restrictions Description
0x00 (00) 0x00 0000 No operation.
0x01 (01) 0x00 256 Reset Micro. Force a restart condition, like power-
up. A reset function to the Gateway forces all
devices out of sync. A reset function to a Node
device only affects that Node. A reset function may
cause the Gateway to detect a timeout condition
and will temporarily cause a loss of control of the
device outputs. The outputs may turn either on or
off. Do not reset the device while connected to a
running control system
0x02 (02) 0x00 512 Restore system and device defaults from the
EEPROM. This command restores all factory default
conditions for the system settings.
0x03 (03) 0x00 768 Applies only
to the 64
processor
Restore I/O defaults from EEPROM. This command
restores all factory default conditions for all the
device’s I/O points.
0x04 (04) Node 0x00
through 0x38
(1-56)
1024+Node# Gateway Only Reset the error of the specified Node defined by the
data field. The control code is available only on the
Gateway I/O 15 register and results in a 0x00
placed in the Modbus register I/O 8 of the
appropriate Node.
0x05 (05) Node 0x00
through 0x38
(1-56)
1280+Node# Gateway Only Ignore the error of the specified Node defined by the
data field. The control code is available only on the
Gateway I/O 15 register.
0x06 (06) Node 0x00
through 0x38
(1-56)
1536+Node# Gateway Only Disable the error of the Node defined by the data
field. Control code available only on the Gateway
I/O 15 register (This results in a 0xFE placed in the
Modbus register I/O 8 of the appropriate Node).
Reset using the Reset Error function (0x04)
0x07 (07) 00 1792 Gateway Only Clear I/O linking in EEPROM. The I/O link table will
be written with zeros.
0x08 (08) 00 2048 Gateway Only Abort Channel Search. If this command is received
when channel search is in progress, the change
search mode is aborted.
0x10 (16) 00 4096 M-GAGE
Nodes Only
Baseline M-GAGE ™ .
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