Electro Cam PL-1746 Series - Manual (Page 50)

4-5 PLS Functions
EEPROM Checksum
Backplane
PL-1746 Function Name SLC 500 Mapping Read/ Valid Range for Data
File Index Write
Address Number Capability
EEPROM Checksum M0:S.5 138 R/O -32768 to 32767
Models C02,C03 only
EEPROM Checksum
M0:S.6 140 R/W 0=Done
Command/Status 1=Execute/Busy
Models C02,C03 only
Screen MAIN SCREEN to TEST MENU to SYSTEM INF MENU to
EEPROM CHECKSUM
EEPROM CHECKSUM:
IFC2
Description This feature on the C02/C03 computes a checksum of the contents of all EEPROM
(non-volatile memory). To cause the checksum to be computed, first write a 1 to the
EEPROM Checksum Command/Status register (M0:S.6). Then wait until that register's
contents change back to 0. Finally, read the new checksum from M0:S.5.
Enable Codes
Backplane Information
PL-1746 Function Name SLC 500 Mapping Read/ Valid Range for Data
File Index Write
Address Number Capability
Master Password M0:S.106 340 R/W 0-9999
Setup Password M0:S.105 338 R/W 0-9999
Operator Password M0:S.104 336 R/W 0-9999
Per-Channel Operator Access M0:S.280- 688- R/W 0=Operator Accessible
Channels 0-31, 1 bit/channel M0:S.281 690 1=Operator Inaccessible
Screen MAIN SCREEN to PGM ENABLE MENU to ENABLE CODES
LEVEL: OPERATOR
PASSWORD: 1234
Use the SEL key to toggle between enable levels. Use the numeric keys, followed by
ENT to assign codes.
Description This function is used to establish the numbers that will be used as passwords to enable
the Operator, Setup, and Master levels.
The PL-1746 has three levels of programming access: Operator, Setup, and Master in
order of increasing capabilities. The table on the next page lists the functions that can
be programmed under the various levels of access. Programming levels can be acti-
vated, or “enabled,” by entering a password on the keypad, or by activating Terminals
E1 or E2 on the back of the keypad.
• Each programming level can have only one code. That code is stored in the control-
ler and applies to all keypads connected to that controller.
• If a code is entered into a keypad that has a programming enable terminal energized,
the access level will be the highest of the two.
• If both keypads in a two-keypad system are enabled, each keypad will operate at the
programming level enabled on it. For example, if Operator Level is enabled on Key-
pad 1, and Setup Level is enabled on Keypad 2, Keypad 1 will operate at the Opera-
tor Level and Keypad 2 will operate at the Setup Level.
Also see PER CHN ENABLE, ENABLE OPTIONS, and PASSWORD.