Satchwell IAC 600, Manual

Page: 19 / 24

Set Application
Number
Fig.5
Set IAC
Address
Fig.6
REMOTE OPERATION AND INTERROGATION
The IAC is connected, as part of a network, to a remote computer via
the Serial Link, all of the setting and interrogation functions are
carried out at the computer terminal.
Each IAC will be identified by a unique Address Code which is set up
via switch SW1 located to the right of the upper terminal block. This
allows the computer to select the desired IAC on the network. Up to
a maximum of 32 IAC Controllers (or similar compatible devices) may
be connected to a LAN (more if a separate MIU or IAC Touch-screen
is used).
TOUCH-SCREEN SUB LAN ADDRESS
If the IAC is on a Touch-screen Sub LAN then the address which the
computer uses is as follows:-
( (Touch-screen address – 64) x 100) + IAC set address
e.g. Touch-screen address = 68
IAC address = 3
Computer address for the IAC = ( (68 – 64) x 100) +3 = 403
In this way it is possible for large sites to have a unique address for
every network controller.
SETTING THE TOUCH-SCREEN ADDRESS
To set the Touch-screen address and Baud rate see the
Touch-screen User Guide.
SETTING THE ADDRESS, BAUD RATE AND
APPLICATION OF THE IAC 600 BASE UNIT
Instructions 1 to 4 will COLD START your IAC and clear out the
memory.
1. Ensure all IAC outputs are disconnected from the plant.
2. Set bit switch 1 "ON". Set all other bit switches to "OFF" - see fig.
5.
3. Set bit switch 8 to "ON" and then back to "OFF", this will load
preset 1.
4. Set all bit switches to "OFF". Set bit switch 8 to "ON" and then
back to "OFF", this will load preset 0.
5. If you are using preset 0 you should now set the controller
address. If you are using a hardware preset application set the
application number on bit switches 1 to 6 and ensure that bit
switch 7 is set to "OFF".
6. If the IAC is not to be connected to a computer then it is not
necessary to set an address for it.
7. Once the Application Number is set it must be entered into the
IAC by ‘cold starting’ the controller. This is achieved by setting bit
switch 8 to "ON" and then setting bit switch 8 back to "OFF".
SW1
SWITCH
(Increment No.)
POSITION
Off/
Open/0
On/
Closed/1
1
2
3
4
5
6 0
0
0
0
0
0 1
2
4
8
16
32
7
8
Set Appli-
cation
Run
Set
Address
Cold Start
Example:
Switch settings as shown in Fig. 5.
Switch Represents
1 1
2 0
3 4
4 0
5 0
6 0
TOTAL = 5
7
8
Application Number
Run
Set Application
On/Closed/I
Off/Open/0
OPEN
Switch
SW1
SWITCH
(Increment No.)
POSITION
Off/
Open/0
On/
Closed/1
1
2
3
4
5
6 0
0
0
0
0
0 1
2
4
8
16
32
7
8
Set Appli-
cation
Run
Set
Address
Cold Start
Switch Represents
1 1
2 0
3 4
4 0
5 0
6 32
TOTAL = 37
7
8
Address
Run
Set Address
On/Closed/I
Off/Open/0
OPEN
Switch
8. Set the controller address on bit switches 1 to 6 and set bit switch
7 to "ON". See fig.6.
9. Once the address has been set it must be entered into the IAC by
‘cold starting’ the controller. This is achieved by setting bit switch
8 to "ON" and then setting bit switch 8 back to "OFF".
Example:
Switch settings as shown in Fig. 6.
10. The IAC application and address has now been set up, the Baud
rate is automatically set to 1200 Baud (this is done whenever the
controller is cold started).
Notes:
1. Do not set more than one network device to the same address.
2. If a sub-LAN is used then addresses 1 to 31 can NOT be used on
the main LAN.
3. Protocol and wiring information for OEM communications
programmes are available from Marketing Department, Slough
Office.
4. The IAC operates at 1200 Baud.
05/98 19 - 24 DS 2.951A