GE PACSystems RX7i, User Manual

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Chapter 4. Configuration
48 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual GFK-2224Q
Locally edited configuration changes cannot be retrieved into the PLC and loaded to the programmer. Locally
edited configuration changes are always overwritten when a PLC configuration is stored into the PLC from the
programmer.
Initial IP Address Assignment
Each PACSystems Ethernet Interface comes from the factory with a default IP address (0.0.0.0). Because this
default address is not valid on any Ethernet network, an initial IP address must be assigned for initial network
operation, such as connecting the programmer to download the first hardware configuration. The initial IP
address must be selected for proper operation with your network and application; see your network
administrator for the proper initial IP address value.
An IP address can be set using the “Set Temporary IP” method if the PLC is not in a RUN state, even if the
Ethernet interface already has a valid configured IP Address. If the Ethernet interface has the factory default IP
Address 0.0.0.0, a temporary IP address can be set using BOOTP over the Ethernet network, if a BOOTP server is
present.
Alternatively, an initial IP address can be set via the CHSOSW command from a local serially connected Station
Manager terminal. See
PACSystems TCP/IP Communications Station Manager Manual,
GFK-2225, for details.
A third way of setting the IP address is to configure the IP address in Hardware Configuration and store the
configuration over a serial connection.
Assigning a Temporary IP Address Using the Programming Software
To initiate Ethernet communications with the programmer, you first need to set up a temporary IP address.
After the programmer is connected, the actual IP address for the Ethernet interface (as set up in the hardware
configuration) should be downloaded to the PLC. The temporary IP address remains in effect until the Ethernet
interface is restarted, power-cycled or until the hardware configuration is downloaded or cleared.
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To use the Set Temporary IP Address utility, the PLC CPU must not be in RUN mode. IP address assignment
over the network will not be processed until the CPU is stopped and is not scanning outputs.
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The current user logged on to the PC running the Set Temporary IP Address utility must have full
administrator privileges.
▪
The Set Temporary IP Address utility can be used if communications with the networked PACSystems
target travel across network switches and hubs. It does not work if communications travel through a
router.
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The target must be located on the same sub-network (subnet) as the computer running the Set Temporary
IP Address utility. The sub-network is specified by the computer’s subnet mask and the IP addresses of the
computer and the PACSystems Ethernet Interface.