㵪
94
㵪
8.3.6 Process Variable Transmission Format (BINARY)
㩷 㩷
Output bytes (2 bytes) :
䋵㬍
n (specified number of channels)
䋫
6
(1) Date and time (6 bytes):
㩷 㩷 㽲
Year
:
䋰䋰
H to
䋶䋳
H (00H for the year 2000)
㩷 㩷 㽳
Mouth
:
䋰䋱
H to
䋰
CH
㩷 㩷 㽴
Day
:
䋰䋱
H to
䋱
FH
㩷 㩷 㽵
Hour
:
䋰䋰
H to
䋱䋷
H (24-hour system)
㩷
㩷 㩷 㽶
Minute
:
䋰䋰
H to
䋳䌂
H
㩷 㩷 㽷
Second :
䋰䋰
H to
䋳䌂
H
(2) Process variable (5 bytes)
㩷 㩷 䌃䌈䌎䌯䋮䋨䋱䌂䌙䌔䌅䋩䋺
Channel number
㩷 㩷 㩷 㩷 㩷 㩷 䋰䋱䌈
to
䋰䋲䌈
㩷 㩷 䌁䋱
to
䌁䋴䋨䋲䌂䌙䌔䌅䋩䋺
Alarm type activated at each alarm level.
㩷 㩷 㩷 㩷 㩷 㩷 䋱㩷 䋺
High limit alarm
㩷 㩷 㩷 㩷 㩷 㩷 䋲㩷 䋺
Low limit alarm
㩷 㩷 㩷 㩷 㩷 㩷 䋰㩷 䋺
Alarm OFF or alarm setting OFF
㩷 㩷 䋨
Example
䋩
Bit Sequence
㩷 㩷
㩷 㩷
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷
LEVEL2H
㩷 㩷
LEVEL1H
㩷 㩷 㩷 㩷
LEVEL4H
㩷 㩷 㩷 㩷
LEVEL3H
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷
㩷 㩷 㩷 㩷 㩷
LEVEL2L
㩷 㩷 㩷
LEVEL1L
㩷 㩷 㩷
LEVEL4L
㩷 㩷 㩷 㩷
LEVEL3L
㩷 㩷 㩷
LEVEL
䌸䌈䋺
High limit alarm bit at the alarm level x
㩷 㩷 㩷
LEVEL
䌸䌌䋺
Low limit alarm bit at the alarm level x
䌄䌁䌔䌁
䋱䇮䋲䋨䋲䌂䌙䌔䌅䋩䋺
Process variable
㩷 㩷 㩷 㩷 㩷 䋭
䋳䋲䋰䋰䋰䌾䋫䋳䋲䋰䋰䋰㩷 䋨
2-byte hexadecimal data
䋩
㩷 㩷 㩷 㩷 㩷
The higher and lower bytes can be reversed by the BO command.
㩷 㩷 㩷 㩷 㩷
If Skip is specified,
䋸䋰䋸䋰
H will be output.
Output bytes
Date and time
Process variable 1
Process variable 6
㽲
㽳
㽴
㽵
㽶
㽷
䋰
䋰
䋱
䋰
䋰
䋰
䋰
䋱
䋰
䋰
䋰
䋱
䋰
䋰
䋱
䋰
䌛
Note
䌝
z
Outputs a data over -32000 to +32000 as the overflow. An overflow 7E7E is output on plus
side, and 8181 is output on minus side. (Excluding the Decade channel.)
z
Data output of the Decade channel is as follows regardless of the BO command. The upper
byte outputs a mantissa (10 to 99). The lower byte outputs an exponent (-19 to 19). A decimal
point position is fixed on 1 digit.
䌃䌈䌎䌯䋮 䌁
䋲
䌁
䋴
䌁
䋱
䌁
䋳 䌄䌁䌔䌁䋱 䌄䌁䌔䌁䋲
i
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Tel: (01943) 602001 Fax: (01943) 816796