Runco RS232 Guía de instalación descargar pdf (Pagina 52)

Troubleshooting Serial Connections

52 RS232 Control

Individual Command

1 For each tile in the wall, send the command op A1 pattern=blue ^M,

substituting each tile’s ID in turn.

2 Did each tile turn blue when commanded?

a If not, check that you typed the ID correctly to match the tile.

3 Did you receive an echoed response back each time?

a If not, go to Response From Individual Tiles on page 55.

Data Query

1 Send a command which asks for information to each tile in turn. For example, op

A3 lcd.position(row)? ^M

2 Did each tile return its row in the WindowWall?

a If not, go to Response From Individual Tiles on page 55.

Troubleshooting Useful Commands

If you are trying to send a particular command and are having trouble, first make sure

you have established the wiring and settings are correct by using the simple

commands suggested above. After you have established that, the problem is

probably in the command itself.

If a tile doesn't respond to a particular command, look at the “Commands Received”

number. If it doesn't increase by one, the tile didn't understand the command.

Double check the spelling and syntax. Be sure to start operations with op or OP, not

oP or Op. Be sure to end with a ^M.

If the Commands Received increases but the tile didn't respond, it may be in a state

where it cannot respond at this time, or it may have invalid data. Try sending the

command with an individual (not global) address, and watch the response. If it sends

a NAK, it wasn't able to carry out the command. For example, you can't change the

brightness unless you have a valid source. It will also send a NAK if the data is out of

range. For example, you can't set the brightness to 1000. If it sends an ERR, it didn't

understand the command. Perhaps it is spelled wrong, or you are trying a command

that is not valid on this product.

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Runco RS232 Guía de instalación Pagina 52