Chapter 3. CPU Configuration
PACSystems* RX7i & RX3i CPU Reference Manual
Enables or disables the physical operation of the RUN/STOP Switch.
Enabled: Enables you to use the physical switch on the PLC to switch the PLC into STOP
Mode or from STOP Mode into RUN Mode and clear non-fatal faults.
Disabled: Disables the physical RUN/STOP Switch on the PLC.
Note: If COM1 and COM2 are configured for any protocol other than RTU Slave or
SNP Slave, the RUN/STOP Switch should not be disabled without first must
making sure that there is a way to stop the CPU, or take control of the CPU
through another device such as an Ethernet interface. If the CPU can be set to
STOP Mode, it will switch the protocol from Serial I/O to the STOP Mode
protocol (default is RTU Slave). For details on STOP Mode settings, refer to
COM1 and COM2 Parameters.
This applies to COM1 on the CPE305, which has only one serial port.
This note does not apply to CPUs which have no serial ports.
Enables or disables the Memory Protect feature associated with the RUN/STOP Switch.
Enabled: Memory Protect is enabled, which prevents writing to program memory and
configuration and forcing or overriding discrete data.
Disabled: Memory Protect is disabled.
Selects the CPU mode to be in effect immediately after power-up.
Choices: Last, Stop, Run.
Default: Last (the mode it was in when it last powered down).
Note: If the battery or Energy Pack is missing or has failed and if Logic/Configuration
Power-up Source is set to Always RAM, the CPU powers up in STOP Mode
regardless of the setting of the Power-up Mode parameter.
Specifies the type of memory mapping to be used for data transfer between Modbus
TCP/IP clients and the PACSystems controller.
Disabled: The Disabled setting is intended for use in systems containing Ethernet
firmware that does not support Modbus TCP.
Standard Modbus Addressing: Causes the Ethernet firmware to use the standard map,
which is displayed on the Modbus TCP Address Map tab.
For details on the PACSystems implementation of Modbus/TCP server, refer to
PACSystems RX7i & RX3i TCP/IP Ethernet Communications User Manual, GFK-2224.
Universal Serial Bus RX3i CPE305/CPE310/CPE330 CPUs only. Enables or disables the USB port for use with
RDSD (Removable Data Storage Devices). The USB port is enabled by default in the
CPE305/CPE310/CPE330 and in the hardware configuration.
If a CPU310 configuration is stored to a CPE310, the USB port will be enabled.