40
17.2 TTL Communication
:
SV output and RATE function
z
Open RATE function (use for slave controller)
Display AL3
:
SET2.1=1
Display ALD3
:
SET4.1=1
Display RATE(AL3 will be replaced)
:
SET0.2=1
Set ALD3 to 0. (In Level 3)
Slave SV = (
RATE
÷9999)×master SV
z
Example
:
SD
SG
uPC92
Master
RD
SG
uTC92
Slave 1
RD
SG
uTC92
Slave 2
SV OUT
(SET0.1=1)
IDNO=0
(SET5.4=1)
BAUD=2400
(SET5.4=1)
IDNO=1
(SET5.4=1)
BAUD=2400
(SET5.4=1)
open RATE function
IDNO=1
(SET5.4=1)
BAUD=2400
(SET5.4=1)
open RATE function
Connection Diagram
Time Chart
Time
1 hour
1000
SV_1=1000
TM_1=01:00
OUT_1=100%
Time
1 hour
900
RATE = 9000
SV=900
Time
1 hour
800
RATE =8000
SV=800
( Three controllers reach to the max value at the same time )
SV
SV
SV
Master
Slave 1
Slave 2