Schneider Electric ATV61 manual Reminder of possible connection methods

3. Implementation of the communication option cards

3. 3. Communication via Unitelway/Modbus network and VW3 A3 303 option card

3. 3. 1. Reminder of possible connection methods

ATV38			ATV 61
3	= D(A)	3		= D(A)
4	= 0 V	4		= 0 V
7	= D(B)	7		= D(B)

If the chosen communication interface is the VW3 A3 303 option card (Modbus RTU/Jbus/Ascii, Unitelway) both the address and the protocol format must be configured manually.

3. 3. 2. Configuring the drive address on the Modbus/Unitelway network

Transfer the Altivar 38 address to the Altivar 61:

An Altivar 38 was identified on the bus by its address, coded between 0 and 31.

The address corresponds to the number represented by the binary value 1 or 0 of the 8 card switches (in fact only micro-switches 3 to 7 are used).

The least significant bits are on the right.

Transfer the Altivar 38 address to the Altivar 61 using the 8 switches on the right of the card; the value 0 being the OFF position, the value 1 the ON position.

The least significant bits are on the right.

On the Altivar 38, the binary value 1 of a switch is in the up position, on the Altivar 61 this position is reversed, and the value 1 is effective in the down position.

Example

ATV38	ATV 61
Address 11 = 2#0001011	Address 11 = 2#0001011

Address	ATV38 switches	ATV61 switches
	12345678	12345678
0	0000 0000	0000 0000
1	0000 0010	0000 0001
2	0000 0100	0000 0010
3	0000 0110	0000 0011
4	0000 1000	0000 0100
5	0000 1010	0000 0101
6	0000 1100	0000 0110
7	0000 1110	0000 0111
8	0001 0000	0000 1000
9	0001 0010	0000 1001
10	0001 0100	0000 1010
11	0001 0110	0000 1011
12	0001 1000	0000 1100
13	0001 1010	0000 1101
14	0001 1100	0000 1110
15	0001 1110	0000 1111

Address	ATV38 switches	ATV61 switches
	12345678	12345678
16	0010 0000	0001 0000
17	0010 0010	0001 0001
18	0010 0100	0001 0010
19	0010 0110	0001 0011
20	0010 1000	0001 0100
21	0010 1010	0001 0101
22	0010 1100	0001 0110
23	0010 1110	0001 0111
24	0011 0000	0001 1000
25	0011 0010	0001 1001
26	0011 0100	0001 1010
27	0011 0110	0001 1011
28	0011 1000	0001 1100
29	0011 1010	0001 1101
30	0011 1100	0001 1110
31	0011 1110	0001 1111

Use of address 0 is not recommended on a Modbus/Unitelway network as this address has the effect of deactivating the option card.

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