37
Explicit Message Communications
Section 2-6
Note
1.
The unit number specified by the instance ID must be set between 0001
Hex and 0010 Hex.
2.
An error will occur if the unit number of an E39-TM1 Terminal Block Unit is
specified.
3.
When WRITE commands are executed, the settings are written to the in-
ternal memory. The number of times that data can be written to the internal
memory is limited. The internal memory may be corrupted if more than one
million (1,000,000) write operations are performed for each Sensor and pa-
rameter. Therefore, when using WRITE commands, be sure to create a
communications program that prevents the number of writing operations
from exceeding one million (1,000,000) for each Sensor and parameter.
4.
Do not send commands for attribute ID that are not specified. Accidentally
sending such commands may overwrite internal parameters. If the internal
parameters of a connected Sensor are overwritten, execute the Initialize
Sensor Settings operation command. If the internal parameters of the Fi-
ber Amplifier Sensor Communication Unit are overwritten, write 0000 Hex
for the following attribute ID settings to clear them.
The following explanations provide the data format for each item.
Write Threshold Setting
Writes the threshold setting of the Sensor for the unit number specified in the
instance ID to the Sensor’s internal memory. The data is given as a 2-byte (4-
digit) hexadecimal value, and negative data is expressed as its two’s comple-
ment.
Note
1.
The Write Threshold Setting command cannot be executed when the Zero
Reset setting is enabled. Disable Zero Reset to execute the Write Thresh-
old Setting command.
2.
The setting range of Write Threshold Setting command changes when the
Write Hysteresis Width command is executed. An error will occur if the val-
ue written is outside the setting range.
Write Basic Settings
Sets the basic settings of the Sensor for the unit number specified in the
instance ID. The data contents is shown in the following table.
Explicit message
Command
Class ID
Instance ID Attribute ID
Internal parameter 1
009D
0000
32
Internal parameter 2
009D
0000
33
Bit
Contents
00
Display Contents:
0: Digital incident level
1: Digital percentage
2: Analog incident level
01
02
Display Orientation:
0: Standard
1: Reversed
03
Hold Setting:
0: OFF
2: Peak
3: Bottom
04
Summary of Contents for E3X-CIF11
Page 3: ...iv...
Page 21: ...10 Connecting Fiber Amplifier Units Section 1 3...
Page 63: ...52 Setting Monitoring and Operating Sensors from the DeviceNet Configurator Section 2 7...
Page 107: ...96 CompoWay F Message Communications Section 4 5...
Page 125: ...114 Monitoring Incident Light Levels of E3X DA6 P Sensors Appendix B...
Page 133: ...122 DeviceNet Connection Settings Appendix C...
Page 135: ...124 DeviceNet Device Profile Appendix D...
Page 137: ...126 Revision History...