Sharp JW-21MN Chapter 8: Memory Address on the ME-NET, 8-1Memory address for data links

Chapter 8: Memory Address on the ME-NET

The ME-NET employs a system for addressing individual memory banks in all of the connected equipment by allocating address throughout the ME-NET. Therefore, the top address in any link area which will contain in the data link parameters and memory addresses used for computer link instructions must be a valid memory address in the ME-NET.

The relationship between memory addresses in Sharp PCs (JW20/JW20H/JW30H) and those on the ME-NET are shown below.

8-1 Memory address for data links

The memory addresses(8) on the ME-NET correspond to the file addresses(8) in a Sharp PC (JW20/ JW20H/JW30H).

(1) Memory address map (against JW20/JW20H)

			JW20/20H address				ME-NET address
	Byte address(8)			Byte address(8)		File address(8)	Byte unit:
	1 address = 1			1 address = 8		1 address = 8		Byte unit: Octal
							Hexadecimal
		point			points	points
I/O relay	00000 to 03777		ｺ	0000 to ｺ 0377		000000 to 000377	0000 to 00FF	000000 to 000377
Auxiliary relay	04000 to 06777		ｺ	0400 to ｺ 0677		000400 to 000677	0100 to 016F	000400 to 000677
Latched relay	07000 to 07777		ｺ	0700 to ｺ 0777		000700 to 000777	0170 to 01FF	000700 to 000777
General-purpose	10000 to 15777		ｺ	1000 to ｺ 1577		001000 to 001577	0200 to 0037F	001000 to 001577
									8
relay
TMR/CNT contact	T-C000 to T-C777					001600 to 001777	0380 to 03FF	001600 to 001777
point
TMR/CNT current			b0000 to b1777			002000 to 003777	0400 to 07FF	002000 to 003777
value
			09000 to 09777			004000 to 004777	0800 to 09FF	004000 to 004777
			19000 to 19777			005000 to 005777	0A00 to 0BFF	005000 to 005777
			29000 to 29777			006000 to 006777	0C00 to 0DFF	006000 to 006777
			39000 to 39777			007000 to 007777	0E00 to 0FFF	007000 to 007777
Register			49000 to 49777			010000 to 010777	1000 to 11FF	010000 to 010777
			59000 to 59777			011000 to 011777	1200 to 13FF	011000 to 011777
			69000 to 69777			012000 to 012777	1400 to 15FF	012000 to 012777
			79000 to 79777			013000 to 013777	1600 to 17FF	013000 to 013777
			89000 to 89777			014000 to 014777	1800 to 19FF	014000 to 014777
			99000 to 99777			015000 to 015777	1A00 to 1BFF	015000 to 015777
Self diagnosis
result storage			E0000 to E1777			016000 to 017777	1C00 to 1FFF	016000 to 017777
register

-For details about the address range of relay link, register link, and the JW-21MN flag, see page 11-11 in this manual.

-The addresses that can be used vary with PC model in which the JW-21MN is installed and with the memory capacity of the PC. For details, see the instruction manual for a particular PC.

8-1