Chapter 6. OPERATION

6 - 4 External Switch Operation

External switch input

A total of 16 external switch inputs are available. Each input is called SW1, SW2, etc. up to SW16. (SW: external switch input)

Types of external switch inputs

SW1 to 4 and SW9 to 16 are tied.

SW5 to 8 functions are selected using setup data settings C71 to C74.

SW9 to 14 are for program selections. Selections are made by entering BCD code

"

￿

 

￿#

 

 

 

 

 

 

or binary codes in the setup data C75. When two weights are given for an item,

$

%&￿￿

 

 

 

 

 

￿￿￿￿￿￿￿￿￿￿￿

￿￿￿￿the￿￿￿right￿￿￿￿

weight!

is for binary figures￿￿￿￿￿￿￿￿and the left is for BCD.

￿￿￿￿￿￿￿￿￿￿

'

￿￿￿￿￿￿￿￿￿(￿￿￿(￿￿￿￿￿￿￿￿(￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿)￿￿￿￿￿￿￿￿*

 

 

 

+

 

,-.￿

 

 

 

 

￿￿￿￿￿￿￿￿

/

%￿#

 

2*￿!%3￿￿￿￿￿￿￿￿!￿￿￿%￿￿￿￿￿￿￿￿￿￿￿*

 

￿￿0

1￿￿

 

 

￿￿￿￿

 

￿￿6

!,%￿￿%￿￿4%￿#!5

 

 

 

 

￿￿￿￿￿￿￿￿￿

8

￿#!

4￿)￿￿

 

￿

 

 

 

4￿ ￿￿￿￿￿

￿

 

 

 

 

 

 

$

 

 

 

 

 

 

 

 

 

 

0

￿+

 

 

 

"

￿￿￿￿

 

 

￿7￿￿￿￿￿￿￿8￿￿

 

 

 

$

 

 

"￿

￿￿￿￿￿￿

 

￿￿￿+

1￿

￿)￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿

 

 

 

'

 

 

 

 

 

 

 

 

 

 

 

NOTE

When G.SOAK is cleared using an OR condition and an external switch is on, or PV enters the G.SOAK width, a G.SOAK wait is cleared.

When G.SOAK is cleared using an AND condition and an external switch is on and PV enters the G.SOAK width, a G.SOAK wait is cleared.

6-12

Page 94
Image 94
Honeywell DCP552 Mark II user manual External Switch Operation, External switch input, Types of external switch inputs