Omron NQ HMI Getting Started Manual page 117

10 Click PLC/MODIFY Monitor Variables on PLC menu.
11 Connect the cable to the NQ-Series and PLC. Refer to A-4-5 NQ to Siemens S7-300/400 Series. Connect
the PLC end port to the Siemens S7-300 PLC. Connect the NQ-Series' male port of the cable to the defined
COM1 port of the NQ-Series.
12 Enter 3000 in the NQ-Series' screen. If the connection has been correctly established the same value is
shown in SIMATIC Siemens software.
Note
The following messages are displayed on the NQ-Series' screen if problems occur:
• !!! no connection
• ??? connection established, address unknown
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