KEP MMI-1500 Installation & Operation Manual page 39

Baud rate, Parity, Data bits and Stop bits: Set the baud rate to match the PLC ports settings. These are disabled if
Ethernet communication is selected. (Ethernet communication uses 10 BaseT and TCP/IP parameters.)
Comm. delay and Additional Parameters:
The Comm. Delay parameter is used for setting an interval between communications requests to the controller. Enter a
number from 0 to 999. The number specifies the 10-millisecond intervals between communications. For example: a setting of
100 puts a 1-second interval between communications requests. This parameter will slow data update rate on a window. It
also gives slow controllers a way to meet processing demands without too many interruptions.
Set the other additional parameters as required by your driver. See the Controller Reference Guide section that references
the PLC driver for further details.
HMI station No.: This is used when PLCs require the HMI to have a node or station identifier. Set as needed or leave at 0 if
not used. Station numbers are 0-255 (Use the range as appropriate for PLC type).
PLC station No.: Used when PLCs have a node or station identifier. The HMI needs the station number to initiate
communications. Set as needed or leave at 0 if not used. Station numbers are 0-127 (Use the range as appropriate for PLC
type). If the PLC station number does not match the PLC, the "PLC no response" error message is displayed. Station
numbers above 127 (127~255) are reserved for the Auxiliary Port.
Multiple HMI: Allows more than one HMI to be connected to one PLC. Enable as a Master or a Slave, depending on
connection, or Disable as needed.
Description
Selection
Disable Disables the chaining of multiple MMIs to one PLC.
Slave Select this if this HMI connects to another HMI in the chain.
Master Select this when the HMI is the unit connected directly to the PLC.
Connect I/F: Select the unit to unit connection type. Ethernet is available for units with the optional Ethernet port. For all
others, use the Serial interface (I/F) selection.
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