Unit installation

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8-2

courtesy beeps. Now you start having problems. Whenever you change the courtesy beep on one

repeater, it messes up the courtesy beep on the other repeater as well, since everything gets stored

in one big snapshot macro. You can't make a snapshot macro that does just what you want; it

always restores a whole configuration at once.

The solution to the dilemma illustrated above is to use multiple command macros that do exactly

what you want them to and nothing else. If you want a macro to connect you to Link A and not to

Link B, make a multiple command macro to disconnect your repeater from Link B and connect it

to Link A. Executing this macro will not interfere with anything else that is going on in the

controller like a snapshot would.

Advanced Macro Topics:

Limits on Macros:

Since one macro can call another macro, you may wonder if macro 500 could call 501, which could

call 502, which could call 503, etc. until you had called 100 macros or so. The answer is not quite.

There are two limits. One is that if the total time it takes the processor to decode and execute the

whole chained macro sequence is more than 1/2 second or so, the controller may reset itself. It is

unlikely that you will ever reach this limit (it would probably take more than 20 macros all hooked

together to even come close to this limit). The other limit restricts how deeply the macros can be

nested (called from another macro). This is not a limit on how many commands can be called

inside of a macro. It is not a limit on how many macros can be executed from one macro. It is a

limit on one macro calling another macro that calls another macro that calls another macro. You

can think of it as a limit on how deep an outline can go. For example, you execute macro 500. It

calls Command 038, macro 501, and Command 000. This can be shown as the level with roman

numerals:

I Call Command 038

II Call macro 501

III Call Command 000 and connect port 1 and 3

Macro 501 could contain Command 007 and call macro 502. Since macro 501 is called from

macro 500, it is nested one level deeper, to level 2. This could be shown as capital letters in the

outline:

I Call Command 038

II Call macro 501

A Call Command 007

B Call macro 502

III Call Command 000 and connect port 1 and 3

Macro 502 could call macros 503, 504 and 505. Macro 502 is nested one level deeper than 501, so

it is at level 3.

I Call Command 038