Sharp JW-21MN manual 11-8

(2)In case that setting the data link (save memory function) when the master station and all slave stations are JW-21MN's.

Memory addresses inside control module of slave station continue in order of receiving and

sending.

Master station 00(8)	Slave station 01(8) ｎ＝０２to７７ (8)	Slave station n	○ : Send
(Data memory)	(Data memory)	(Data memory)	● : Receive

linkRelay a(Within areaoftotal bytes)256

ａ0

ａ1

ａn ｈ1

ｃ0

ｃn

ｃ1

	*ｆ1	(Within control
*ｆ1 (Within JW-21MN)		module)		(Within
ｈ1				64 bytes
				in total)
				※ ｆn
ｆ1+ｈ1				hn
ｃ1			ｆn +ｃn

ｃn

ｂ0

*ｇ1

ｃn

- Omitted a memory map

*ｇinside control module. 1

arealink oftotal bytes)2048

Registera(Within

ｂ1

ｉ1

ｄ0 ｂn

ｄn

ｄ1

ｄn

	(Within a
	total of
ｉ1	512 bytes)
ｇ1+ｉ1	*ｇn
	ｉ
	n

ｄ1

ｇn +ｄn

ｄn

11

Flag	ｅ0	ｅ1	ｅn
area	24bytes	24bytes	24bytes

-Set the relay link area, the register link area, and the flag area within the settings range of page 11-11, 12 and 23. Be careful not to double any address allocation of these.

-Set a0 to en, h1 to in above for parameters of master station and slave station (see page 11-5, 6 and 22) and set f1/fn/g1/gn marked "*" by module No. switch of the JW-21MN (see page 11-2).

Parameter for setting in master station	Parameter for setting in slave station
Top address of relay link area a0, a1 to an	Top address of flag area (slave station) e1 to
	en
Top address of register link area b0, b1 to bn	Number of receiving bytes of relay link area
	h1 to hn
		*
Number of sending bytes of relay link area	Number of receiving bytes of register link		V2
c0, c1 to cn	area i1 to in
Number of sending bytes of register link
area d0, d1 to dn
Top address of flag area (master station) e0.

*Number of receiving bytes of slave station (h1 to hn, i1 to in)

Select self-setting or "same as number of sending bytes (c1 to cn, d1 to dn)" according to parameter (007720 to 007723) of slave station.

Note: When installing JW-21MN without 30Hn mark or 30H mark into JW20/JW20H, number of receiving bytes of each slave station is the same as number of sending bytes.

11-8