WAGO 750 Series User Manual

60 • Board Support Package (BSP)
File System (Root File System)
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
The /etc directory
The configuration files of the Linux system are stored in the /etc directory.
The boot process is kept simple and requires fewer files than a commercially
available distribution for a PC. The files are described according to the boot
sequence:
• rc
• Starts startwago once during system start
• Sets the Host name of the Linux console
• Links the /proc directory to the file system
• Starts inetd (for Telnet, FTP)
• inittab
• Starts and monitors getty, if process stops, it retries to start getty (up
to 5 times)
• startwago
• Starts internal bus driver
• Starts IO-Check driver
• Starts the Web server (BOA)
• Changes the link to getty, depending on the entry in the Linux kernel
command line
• boa
Configuration of the Web server
• fstab
Configuration of the file system
• motd
Start logo of the console
• resolv.conf
Contains the entries of the name servers
• passwd
User password file
• services
The port numbers are assigned to their corresponding services
• group
Configuration of the known user groups
• TZ
Time zone setting for all consoles

WAGO 750 Series Specifications

General

Protection Class	IP20
Bus Couplers	PROFIBUS, CANopen, Ethernet
Modules	Digital Input, Digital Output, Analog Input, Analog Output
Mounting	DIN rail mounting
Voltage Supply	24 V DC (typical)
Communication Protocol	Depends on the bus coupler (e.g., PROFIBUS, CANopen, DeviceNet, Ethernet)
Digital Input Channels	Varies by module (e.g., 8, 16 channels)
Digital Output Channels	Varies by module (e.g., 8, 16 channels)
Analog Input Channels	Varies by module (e.g., 2, 4, 8 channels)
Analog Output Channels	1, 2, 4 channels (depending on module)
Width	12 mm, 24 mm (typical module widths)
Number of Channels	Varies by module type
Current Consumption per Channel	Varies by module type