Schneider Electric none Indicator Codes During Downloading, Normal Download Codes, Error Codes

4.8 Indicator Codes During Downloading

During downloading or internal testing, the four serial ports are disabled and their indicators are used to show system status and error codes.

Indicator layouts are shown in Figure 22.

4.8.1Normal Download Codes

The normal codes appearing during downloading are:

Indication			Meaning
Port 4	±± Flashing two times per second		Ready for downloading
Port 3	±±	ON intermittently	Receiving download from host
Port 2	±± ON (combined with port 3)		Writing to BM85 RAM
Port 1	±±	ON (combined with port 3)	Erasing BM85 RAM

4.8.2Error Codes

If an error occurs during downloading, or if the user calls the exit() routine, the ￿M85 displays an error pattern in its four indicators.

The error pattern produces two 4-bit codes for two hexadecimal digits. First, the indicators show a steady pattern for one second, indicating the upper digit. Then they show a flashing pattern for one second with the lower digit. The continuous and flashing patterns alternate repetitively. Port 4 is the most significant bit in each code.

Indicators

Pattern

Hexadecimal Digit

	4 ± 3 ± 2 ± 1	Steady		Upper digit
4 ± 3 ± 2 ± 1		Flashing		Lower digit
	Error Code
	(Hexadecimal)		Meaning
	F1		BM85 kernel is reloading
	F4		Program or task returned to BM85 bootstrap
	F8		Program or task called abort()
	FD		Could not extend heap ± program called malloc() or equivalent
			and had insufficient memory
	FE		Could not create heap ± not enough memory below code area
	FF		Not enough memory to copy program to RAM area
31007492			Configuring the Programmable Models		67