The system menu opposite allows the communications to and from the device to be configured and also
allows various functions to be enabled from the run mode. The passcode can also be changed from within
this menu. (See diagram below).
14.0 SYSTEM MENU
Enter value
(0 to 247) default 1
4
4 wire RS485
2
2 wire RS485
19 200
9 600
1 200
SHort
Short menu
FULL
Full menu
Enter value
ACt HI
Active High
ACt LO
Active low
Enter value
0 to 65535 default:0
Enter value
60 SEC
60 seconds
OFF ON
OFF ON
1 HOUr
1 hour
OFF ON
OFF rESEt PAuSE
tOtCtL
Total Control
SyStEn
System
AddrES
Address
LinES
Number of wires
bAUd
BAUD rate
diSC
Discrete activity level
select
PASS
Menu access passcode
OFFSEt
User offset
EnAbLE
Enable sub-menu
MODBUS DEVICE ADDRESS
This sets the address for the RS485 communications. The default is 1 and the maximum is 247.
NUMBER OF WIRES
This defines the type of RS485 communication mode. It can either be 4 (full duplex) or 2 (half duplex).
BAUD RATE
This defines the comms baud rate i.e. the speed of communication between the unit and interrogating
device. The baud rate is displayed in bps.
MENU TYPE
When ‘
SHort
’ type is chosen, access to the greyed out menu items is restricted. To allow access to
these items the ‘
FULL
’ menu type should be chosen.
START UP DELAY TIME
The outputs of the unit will not operate until the start up delay time (measured in seconds) has expired.
The minimum delay is 5 s and the maximum 3600 s.
DISCRETE ACTIVE LEVEL SELECT
The function of the discrete input ‘
dISc’
is to operate as a remote clear button press, i.e. you can use
this to reset the totals remotely. This menu item selects whether the clear function is executed when
the discrete is high (24 V) ‘
ACt HI
’ or low (0 V) ‘
ACt LO
’.
MENU ACCESS PASSCODE
When accessing the menus from ‘Run’ mode, the user is prompted for this passcode. If it is zero (default),
then there is no prompt and the password function is disabled. If the password is forgotten please contact
your supplier.
USER OFFSET
This value is used to offset the scaled process variable by a fixed amount.
MENU TIME OUT
This sets the amount of time after which the display will revert to the ’Run’ mode if no key is pressed.
ENABLE
Enables the following sub-menu:
CLEAR LATCH
When set to ‘
On
’ latched alarms can be cleared by pressing the clear button on the front panel, or
applying discrete input 1.
CLEAR TOTAL
When set to ‘
On
’, the total is reset by pressing the clear button on the front panel.
EDIT SETPOINTS
When set to ‘
On
’ the edit setpoints sub-menu can be accessed directly from the ‘Run’ mode.
TOTAL CONTROL
This sets the action of the total when the discrete input is applied.
‘
oFF
’ means the total is unaffected by the discrete input 1.
‘
rESEt
’ means the total is reset when the discrete input 1 is asserted.
‘
PAuSE
’ means the total is paused when the discrete input 1 is asserted.
14.1 SYSTEM MENU FUNCTION BLOCKS
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Page 22
tyPE
Menu type
StArt
Start-up delay time
t Out
Menu time out
EditSP
Edit setpoints
CL tot
Clear total
CL LAt
Clear latch
