Maple-systems HMI5000 Series Manuel d'utilisateur télécharger pdf (Page 184)

178 EZware5000 Series Programming Manual

1010-1007, Rev. 10

In order for a user to login, they must first enter their user number into reserved local word LW9219. Then they must

enter their password into reserved local word LW9220 (32-bit unsigned).

 This procedure is different from what was used in EasyBuilder-500, where the user only needed to enter a

password.

There are several other reserved local words and bits that can add functionality to your security implementation.

Reserved Local Memory

Function

LW9222

Displays the access levels assigned to the currently logged-in user

in binary format (16-bit binary)

Bit 0: A, Bit 1: B, Bit 2: C, Bit 3: D, Bit 4: E, Bit 5: F

LW9500-LW9523 (32-bit unsigned)

Stores user passwords 1-12

LB9050

Logs out user and resets password to zero when bit is set (HMI

resets bit to zero)

LB9060

Indicates when an invalid password has been entered (bit resets

to zero when valid password is entered)

LB9061

Set to update user passwords when changed locally

(LW9500-LW9523) Use momentary style

Refer to the Security Sample Project on our website to see how to employ the above reserved local memory bits and

registers in a security implementation.

(http://www.maplesystems.com > Support Center > Sample Projects > HMI5000 Series > Sample Prj: Security)

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Maple-systems HMI5000 Series Manuel d'utilisateur Page 184