Omron E3X-CIF11, Руководство по эксплуатации

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CompoWay/F Message Communications Section 4-5
The end code is 14 (format error).
Example 3: Node Number Missing
Response Block
There is no response.
Example 4: No Sub-address and Incorrect BCC
The sub-address is 00 and the end code is 13 (BCC error).
4-5-3 Read from Variable Area (MRC = “01”, SRC = “01”)
This service reads from the variable area.
Note 1. An error will occur if the Read Incident Light Level command is sent with
the unit number of an E39-TM1 Terminal Block Unit.
2. An error will occur if the Read ON/OFF Incident Light Level command is
sent with the unit number for a Unit other than the E3X-DA6-P.
Command Block
The following diagram shows the command text in the CompoWay/F com-
mand block.
STX ETX BCC
02 Hex 03 Hex
Command Block
The node number is missing one character.
STX Node number ETX BCC
02 Hex Err 03 Hex
Command Block
Response Block
STX Node number Sub-address End code
02 Hex “1” “0” “0” “3” 03 Hex
ETX BCC
Item Description Variable
type
Read
start
address
Bit
position
Number
of
elements
Read Status Reads status of
Sensors. “81” “0000” “00” “0001”
Read Incident
Light Level
(See note 1.) Specifies unit num-
ber in read start
address and reads
incident light levels
for the specified
number of elements. “82” Unit num-
ber “00” “0001” to
“0010”
Read ON Inci-
dent Light
Level
(See note 2.) Specifies unit num-
ber in read start
address and reads
ON incident light lev-
els for the specified
number of elements. “83” Unit num-
ber “00” “0001” to
“0010”
Read OFF
Incident Light
Level
(See note 2.) Specifies unit num-
ber in read start
address and reads
OFF incident light
levels for the num-
ber of elements. “84” Unit num-
ber “00” “0001” to
“0010”