Document
Contents
Operator's manual
• Controller equipment (push-buttons and LEDs)
• Operating the system
• Alarms and log
• Using the display unit
• Troubleshooting and maintenance
PICUS manual
Using PICUS and CustomLogic
Modbus tables
• Modbus address list
◦ PLC addresses
◦ Corresponding controller functions
• Descriptions for function codes, function groups
1.3 Warnings and safety
1.3.1 Safety during operation
PICUS is a tool for designing, emulating, commissioning, and servicing the controller system.
DANGER!
Do not use PICUS to change the controller configuration during operation. PICUS does not include all the
safeguards required by class societies.
It is possible to connect several PCs running PICUS to the system at the same time, in addition to display units for each
controller. You must therefore ensure that a controller does not simultaneously receive conflicting information from PICUS
and/or the display units, especially during commissioning and servicing.
Simultaneous configuration changes example
If two conflicting configuration changes are made simultaneously, using PICUS and the display unit respectively,
then only the last change that the controller receives is implemented. The controller does not send an error or info
message about the change that it ignores.
Simultaneous commands example
If two conflicting commands are sent simultaneously, using two different computers running PICUS, then only the
first command that the controller receives is effective. The controller sends an error or info message about the
command that it does not execute.
PPM 300 PICUS manual 4189341080 UK
www.deif.com
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