G2-2 Series Profibus-DP
Quick Start Manual
Page 4
TDG22PTQS2-0
1/07
Subject to change ithout notice
.numatics.com/fieldbus
4) Self-Test Mode
An internal diagnostic tool can also be enabled using the optional MCM module. This tool allo s the user to
confirm that all of the Inputs and Outputs on the manifold are fully functional ithout needing a net ork
connection or controller. There are t o test modes that the user can choose using SW2-8. The “Output” test
mode tests all the outputs by sequentially turning them ON one at a time. The “Input/Output” test mode
tests the inputs by causing all of the outputs to toggle bet een even and odd values hen any input is made.
To use the Self-Test Mode, the user must first set some initial conditions using the MCM module. Follo
these steps to obtain the needed initial condition settings. Remember to remove po er from the manifold
before making changes to the MCM hen setting these initial conditions.
1) Disconnect po er and air from the manifold!
2) Record current MCM settings.
3) Set the rotary s itches to 99 (SW3 and SW4).
4) Make sure that SW1-5, SW2-1, and SW2-7 are in the “ON” position.
5) Select the desired test mode ith SW2-8 (see table belo )
S itch
Mode
Setting
Description
Output
Off Sequentially turns all the outputs ON and OFF.
SW2-8
Input/
Output
On
Causes all of the odd outputs to come on and stay on until an
input is made. When an input is made, the outputs ill toggle to
the even outputs.
6) Make sure that all of the other s itches are in the “OFF” position.
The initial conditions are no set. To enable the Self-Test Mode, apply po er to the manifold and make the
follo ing changes hile the module status LED is blinking ( ithin 5 to 10 seconds of po er up):
1) Set SW2-6 to the “ON” position.
2) Set SW2-7 to the “OFF” position.
Once Self-Test Mode is enabled, the Bus Error LED ill flash red/green until Self-Test Mode is terminated by
removing po er to the unit. Remember to return the MCM settings to their original settings to return the
communication node to normal operation.
!
•
Air should be disconnected to the manifold hen attempting to run the
Self-Test Mode to prevent un anted motion.
•
Communication lines should be disconnected before attempting to run the
Self-Test Mode.
