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SC100/200 Series Users Manual EM-6337-B Rev.15
7.6. CONNECTING BETWEEN FUNCTION BLOCKS
7.6.1. EXAMPLE OF CONNECTION TERMINALS REPRESENTATION IN A FUNCTION BLOCK
7.6.2. CONNECTING ANALOG SIGNALS
• Input signal: Group No. and Terminal No. of the signal you need to input (GGNN) is described in a designated ITEM of the
target function block.
• Output signal: Output terminal No. is determined for each function block type.
[Example]
If Basic PID block needs to input PV signal from Field Terminal block, the terminal No. of PV signal is represented as 0421
(04: Group No., 21: Terminal No.). Then you write 0421 in ITEM 15 in the PID block.
7.6.3. CONNECTING DISCRETE SIGNALS
Discrete I/O terminals are available in function blocks. You can process these I/O signals via relay logic programs in Sequen-
tial Control Program block or via Contact Distributor block.
Relay Logic Program
• Discrete input: Discrete input terminal No. is allocated to a coil in relay logic program. It can be input also as discrete signal
of the relay logic.
• Discrete output: Discrete output terminal No. pre-determined for each function block type is input as discrete signal of the
relay logic.
Contact Distributor
A discrete contact input is connected to a discrete contact output just like analog signals. Combination of terminals for dis-
crete input and output is registered in the Contact Distributor block.
7.6.4. PARAMETER SETTER
Various parameters and their output connection terminals (location of the parameter) are preset in Parameter Setter function
block and sent when necessary via a trigger signal from Sequential Control Program block.
WARNING !
Parameters in the Parameter Setter block are rewritable up to 100 000 times. For example, if parameters are updated
every hour, the memory will reach its usable limit in approx. 11 years.
Input Registered in ITEM 11
Terminal No.
11
01
S1
Analog Output
Analog Input
Discrete Input
02
S2
X0
Discrete Output
Y1
X
1
ITEM 11
21
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