Owners manual

Modbus Protocol User Guide 19
4: WiPort and WiBox Implementation
The Modbus master/slave functionality on the WiPort and WiBox is similar to the
Modbus implementation on other platforms such as the UDS-10 or XPress-DR. The
difference is the configurable pins on the WiPort (CP0-CP10) and the WiFi settings
on the WiPort and WiBox are configurable from the Setup Menu.
The WiPort and WiBox have 2 serial ports. Choose the serial port the firmware uses
for sending and receiving Modbus/RTU or Modbus/ASCII serial data under the Serial
& Mode Settings menu option.
Note: Channel 1 on WiBox only supports RS-232 while Channel 2 supports
RS-232 and RS-422/RS-485 2/4-wire modes.
Use serial connector (1=CH1 2=CH2) (1) ?
The menu option for Modem Control Settings is replaced with
Modem/Configurable Pin Settings on the WiPort. The options are:
CP0 Function (hit space to toggle) GPIO (In)
CP0 Function (hit space to toggle) GPIO (Out)
CP0 Function (hit space to toggle) DTR (Out)
CP0 Function (hit space to toggle) Diag LED
CP0 Function (hit space to toggle) Status LED-G
CP0 Function (hit space to toggle) Status LED-Y
CP0 Function (hit space to toggle) RS485 Select
CP0 Function (hit space to toggle) RS485 2-Wire
CP0 Function (hit space to toggle) RS485 4-Wire
CP0 Function (hit space to toggle) Defaults(In)
The assignment for each configurable pin is set by cycling through the menu options
by entering a space or any key other than Enter.
 GPIO assigns the pin as a general purpose input or output. The GPIOs can
be written and read via Modbus/TCP when in slave attached mode.
 DTR is the Modem Control Output (MCO) signal for Data Terminal Ready.
 Diag LED, Status LED-G and Status LED-Y are the outputs for diagnostic
LED (red), green status LED, and the yellow status LED.
 RS485 Select is an output made active when configuring the serial channel
for RS422/485 operation.
 RS485 2-Wire and 4-Wire are outputs made active when configuring
RS422/485 2-Wire or 4-Wire operation respectively.