WEB SERVER FUNCTION
The Web server function can monitor and diagnose the CPU through the network by using a Web browser.
CPU module diagnostics, device monitor, and device data read/write, etc., can be performed from an Ethernet-connected
device using a general-purpose Web browser.
Once the parameters are set, this function can be used without using the engineering tool (GX Works3, etc.).
The user name and password must be used to log in when accessing the Web server. This prevents illegal operations of the
CPU module from an external source. The screen displays and operations can also be limited according to the account.
The following monitoring and diagnostics can be performed with the Web server function.
Module Detailed Information
Web Server Specifications
Web server specifications
The CPU module Web server specifications are shown below.
Number of simultaneous connections
HTTP port number
Supported character codes
Client operation environment
The recommended operation environment for the Web server function client is shown below.
A connection using a wireless LAN access point is required for use with a tablet. Refer to the precautions and restrictions for
the wireless LAN device being used and confirm the connection before starting use.
10 WEB SERVER FUNCTION
10.1 Web Server Specifications
Device monitor, CPU diagnostics
The CPU module's detailed information is displayed.
Errors that the CPU module detects with the self-diagnostics function are displayed.
The user-specified device is displayed in a batch or in one-point units.
A user-defined value can be written to a user-specified device.
Displays the access log of the external device which accessed the CPU module.
80, 1024 to 5548, 5570 to 65534 (default: 80)
5 to 120 s (default: 5 s)
Web browser (HTTP client)
Mobile Google Chrome
Page 123 Module Detailed
Page 124 CPU Diagnostics
Page 125 Device Monitor
Page 127 Device Test
Page 128 Access Log
55 and later
55 and later
9 and later