User Manual

3-3 Explicit Messaging
3-26
- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (GT-70A) -
3
Communicating with the GT-70A series
The following tables list the command parameters used in explicit messaging to read/
write the settings and status of sensor amplifiers and to issue motion commands.
For details about how the master unit performs explicit messaging using command
parameters, see:
"Issuing a Motion Command to a Sensor Amplifier" (page 3-22)
"Reading/Writing Settings or Status of a Se
nsor A
mplifier" (page 3-23)
Common Command Parameter List
The table below des cribes command parameters which are common to the DL-DN1.
InstID: Instance ID; AttrID: Attribute ID
Attribute R: Read; R/W: Read/Write
Command Parameter List
InstID
(DEC)
AttrID
(HEX)
Name Description Attribute
Data
type
Default
value
Parameter range
0
64 Status
Bit 0 - 12: Unused
Bit 13: Sensor ready
Bit 14: Warning state
Bit 15: Error state
RWORD0*1
65 Error state
The error state values of sensor amplifiers
(ID 01 to ID 10) are output as they are
assigned to bits 0 - 9.
RWORD0
0: No Error
1: Error
66 Warning state Not used with the GT-70A series. RWORD0−
67 System reserved
68
Current value
property
This property is output by assigning sensor
amplifiers (ID 01 to ID 10) bits 0 - 9.
The output occurs when the measured
value is non-numeric: "over," "under," or
"invalid."
RWORD0
0: Normally mea-
sured value
1: "over," "under," or
"invalid"
69 to 6B System reserved
6C Error ID number Error details.
If there are errors with multiple ID numbers,
the error information for the smallest ID
number is output.
RUINT0
*2
6D Error code R UINT 0
6E
Warning ID
number
Not used with the GT-70A series.
RUINT0
−
6F Warning code R UINT 0
70 to 73 System reserved
74 HIGH
The HIGH state is output by assigning sen-
sor amplifiers (ID 01 to ID 10) bits 0 - 9.
RWORD0
0: OFF
1: ON
75 LOW
The LOW state is output by assigning sen-
sor amplifiers (ID 01 to ID 10) bits 0 - 9.
RWORD0
0: OFF
1: ON
76 GO
The GO state is output by assigning sensor
amplifiers (ID 01 to ID 10) bits 0 - 9.
RWORD0
0: OFF
1: ON
77 to 8C System reserved
8D
Comparator
value "invalid"
If the comparator values for sensor amplifi-
ers (ID 01 to ID 10) are invalid (-----), they
are output by assigning them to bits 0 - 9.
RWORD0
0: Normal value
1: Invalid