2 hmi roles – GE Industrial Solutions Entellisys 5.0 Administrator Manual User Manual
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Modbus
®
security
19
4
To change the Settings and/or Command passwords
1. On the Main Menu, click the Maintenance button. The button will only be displayed if access
is allowed with the current login permissions.
2. Click the Modbus Security tab. The Modbus Security screen has options to change both
CPU A and CPU B Command and Settings passwords.
NOTE: It is recommended that the passwords in CPU A and CPU B be set to the same value.
3. Enter the new commands password in the New Password field - password must be a
numeric number
4. Re-enter the password in the Confirm Password field
5. Click the Change button to download the password
6. Select the desired Auto Send option
;
Indicates the Auto Send option will transparently send the password each time a
command is sent to the CPU
Disables the Auto Send option.The user will be prompted to enter the password (for the
CPU that is currently the default) each time a command is sent
NOTE: For added security, it is recommended the Auto Send option be disabled. This will
require an additional password to be entered each time a command is performed.
Clear Modbus passwords
1. Type “0” in both the Password and Confirm Password fields
2. Click Change
3. Enter the old password
4.2.2 HMI Roles
An Entellisys system may have multiple HMI stations running. There are three different roles that
the HMI software will perform. There are some functions that should be performed by one HMI
only.
The Kiosked touchscreen HMIs are considered Local HMIs and can be configured as a local or a
master HMI.
The “Local HMI” check box designates the redundant HMI. When it is checked:
• The user can block breaker commands from other HMIs in the “Breaker Control” screen
(See Chapter 3 in DEH-501 Entellisys Low Voltage Switchgear System User Manual)
• HMI uses port 503 for Modbus TCP/IP communication with CPUs
• “Master HMI” check box is cleared
• HMI updates time zone bias information of CPUs that reside in the same lineup whenever
that information is adjusted