98
Verifying CV Values - Macro 97
Verifying CV Bit Values - Macro 97
The Command Station and its programming track can be used to determine what value is stored
in any CV. But, why bother? Why not simply program the CV to the value desired? This is not only
quicker but guarantees the CV is the value wanted. Besides, what if you find the value is not what
is wanted? You’ll still have to program the CV. So, we suggest skipping over the verify step and
simply programming the CV to the desired value.
The CV verification is similar to programming a CV. The verification task uses the programming
track. Using this method can take longer than using Macro 99. But if you only want to know if a
CV has a specific value, this is the quickest way to find out. For this example, CV 3 will be
verified as having a value of 5.
mSVC PRGM,
Note: Make sure that this message is shown as soon as you push
the SVC PRGM key. If not it means the command station cannot
determine the type decoder, and the verify command will not
work.
mCV [the 3 key],
m3, mENT, for CV#3’s value to be verified
m2, for the “verify” option
m1, since the value of CV#3 is being verified
m5 this is the value thought to be in CV3. Leading zeroes are
not required.
mENT
If the value matches what is in the decoder, the “verified!!!” message is displayed. If not, the message says
“Verify Failed!” Note that failure means that the decoder does not contain the value you specified or that the
Command Station is having trouble talking to the decoder. It does not mean the decoder has a problem. Push
ESC to return to the normal display.
For some CVs you may want to verify a specific bit of a complex CV, such as CV29.
Configuration values can also be expressed in 8 unique “bits.” The bits are numbered from right
to left starting at bit-0 and concluding at bit-7. A bit has only two values, either a 1 or a 0.
For the example below, the bit value table to the right
shows the example bit values in CV29. Bit 4 will be
verified for a 1.
mSVC PRGM,
Note: Make sure that this message is shown as soon as you push
the SVC PRGM key. If not it means the command station cannot
determine the type decoder, and the verify command will not
work.
mCV [the 3 key],
m3, mENT, for CV#29’s value to be verified
m2, for the “verify” option
m2, since a bit in CV#29 is being verified
m4 for bit 4 in CV29.
m1 this is the value to be verified as being in CV29 bit #4.
mENT
If the bit value matches what is in the decoder, the “verified!!!” message is displayed. If not, the message
says “Verify Failed!” Note that failure means that the decoder does not contain the bit value you specified
or that the Command Station is having trouble talking to the decoder. It does not mean the decoder has a
problem. Push ESC to return to the normal display.
Program Track
Program What?
Program Track
Program What?
Config Var 0003
1=Rite, 2=Verify
Config Var 0029
1=Rite, 2=Verify
Config Var 0003
1=Value or 2=Bit
Config Var 0029
1=Value or 2=Bit
CV 0003 Verify
Value 5___?
CV 0029 Verify
Which Bit(0-7)?
CV0003 Value 005
Verified!!
CV0029:Verif Bt4
Value of Bit _1?
CV0029, Bit04=01
Verified!!
7 6 5 4 3 2 1
0
0
0 0 0 1 0 00
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