Juniper Systems JS600 - Manual (Page 40)

Page 3-24 Operating System
Guide to Testing Programs
❏ To change the contents of a register, bring the register onto the screen, enter the new
value, and press .
❏ Keep in mind as you are testing your program that the FieldBook has not yet executed the
instruction shown on the display. In other words, the status of the registers you see is
their condition before the instruction is executed. To execute the current statement, press
the down arrow key.
❏ You cannot pass beyond JNK or JKY instructions while testing a program in mode 6-1.
Substituting an NOP instruction temporarily for either instruction allows you to complete
testing of the program.
Mode 6-2 Test Analog
The Test Analog submode is not applicable to this version of the FieldBook.
Mode 6-3 Test Digital
The Test Digital submode is used to test digital inputs and outputs. Instructions for using
Mode 6-3 follow.
Keyboard Entry Next Message Shown Action
MODE? Enter a 6 for TEST Mode.
6 TEST 1,2,3,4 Enter a 3 for submode DIG.
PGM, ANA, DIG, MEM
3 INPUTS 1234 The top line shows which of the four input
OUTPUTS 3 channels are presently high on the serial
connector. If no external device is attached,
numbers 1 through 4 are displayed. The
second line shows which of the three output
channels are presently high. You can toggle
the lines from high to low by pressing their
corresponding numbers on the keyboard.
Mode 6-4 Test Memory
The Test Memory submode is used to test the Random Access Memory and make sure it is
working properly. Instructions for using Mode 6-4 follow.
Keyboard Entry Next Message Shown Action
MODE? Enter a 6 for TEST Mode.
6 TEST 1,2,3,4 Enter a 4 for submode MEM.
PGM, ANA, DIG, MEM