Omron E3X-DRT21 Operation Manual page 91

CompoWay/F Message Communications
Read (ON/OFF) Incident
Light Level
Response Codes
Normal Completion
80
Number of Sensors Connected
Bits 00 to 04 give the number of Sensors that are currently registered in hexa-
decimal.
Method for Setting Number of Sensors
Bit 05 gives the status of DIP switch pin 3, which determines the method for
registering the number of Sensors connected. When this bit is OFF, pin 3 is
OFF, and when the bit is ON, pin 3 is ON.
Number of Sensors That Can Communicate
Bits 08 to 12 gives the number of Sensors that are currently able to communi-
cate in hexadecimal. This setting allows the user to check how many Sensors
are communicating normally when an error occurs.
Mobile Console Communications Flag
Bit 13 turns ON when the Mobile Console is connected to the Communication
Unit. Communications cannot be used when the Mobile Console is con-
nected.
Sensor Communications Error Flag
Bit 14 turns ON when the number of Sensors registered as connected does not
match the number of Sensors that can communicate, or when a
communications error occurs after communications have been established
with the Sensors.
Sensor Communications Flag
Bit 15 turns ON when communications are established with the Sensors.
Reads the incident light levels as a batch for the number of Units specified in
the number of elements starting from the unit number specified in the read
start address. The data is given in 16-bit (4-digit) hexadecimal data for each
Unit. Negative data is expressed as its two's complement.
The incident light levels of E39-TM1 Terminal Block Units cannot be read. Do
not specify the Terminal Block Unit when sending the Read Incident Light
Level command.
Read ON Incident Light Level and Read OFF Incident Light Level can be sent
when using E3X-DA6-P Sensors only. Do not specify any other model of Sen-
sor when sending the Read ON/OFF Light Level commands. For details on
ON and OFF incident light levels, refer to Appendix B Monitoring Incident
Light Levels of E3X-DA6-P Sensors.
Unit number N Unit number N + 1
incident light level incident light level
Unit number specified for the read start address: Unit number N
Number of Units specified in the number of elements: M Units
Response code
"0000" Normal completion
Unit number
N + M – 2
incident light level
Name
No error has occurred.
Section 4-5
Unit number
N + M – 1
incident light level
Description