Section 3
ZGARD S & DS Sensors
Installation and Setup
On the main circuit of every ZGARD S & DS
Sensor is a set of RS485 Selection Jumpers
setting each sensor binary address code. The
H2 jumpers are located on the ZGARD S & DS
(SS) sensor boards and the H1 jumpers are
located on all ZGARD S & DS (EC) sensor
boards.
Refer to the associated sensor
Installation Outline Drawing for further
details.
Table of the RS485 Sensor Address Codes
RS485 Digital Address Binary Code
Setup:
The ZGARD S & DS Sensors with
RS485 digital output are recognized by MSA
ZGARD C controller. Each sensor must be
given a unique address code or it will not be
able to communicate correctly. The binary
address code is set by arranging the user
selection jumpers shown on H2-1, H2-2, H2-
3, H2-4, H2-5, H2-6 and H2-7 jumpers
located on the ZGARD S (SS) sensor
boards. The H1-1, H1-2, H1-3, H1-4, H1-5,
H1-6 and H1-7 jumpers are located on all
ZGARD S & DS (EC) sensor boards.
Refer
to the associated sensor Installation
Outline Drawing for further details.
Connect a 4-conductor serial bus electrical
cable between the devices. The connection
terminal labeled Data 1 and Data 2 are for
communication while the +24Vdc and COM
are for power, supplied by the ZGARD C
Series controller. Make sure that all wiring is
correct and the four connecting leads of the
RS485 bus are not interchanged or
permanent damage to the sensor may result.
Refer to the associated ZGARD C Series
controller, Installation Outline drawing for
further details.
3.1
H2 (H1)
RS485 ADDRESS 1 – 127
1
1
(SET BY BINARY)
2
2
3
4
4
8
5
16
6
32
7
64
Binary
1
2
4
8
16
32
64
Address
H2-1
(H1-1)
H2-2
(H1-2)
H2-3
(H1-3)
H2-4
(H1-4)
H2-5
(H1-5)
H2-6
(H1-6)
H2-7
(H1-7)
1 IN
OUT OUT OUT OUT OUT OUT
2
OUT
IN
OUT OUT OUT OUT OUT
3 IN
IN
OUT OUT OUT OUT OUT
4
OUT OUT
IN
OUT OUT OUT OUT
5 IN
OUT
IN
OUT OUT OUT OUT
6
OUT
IN IN
OUT OUT OUT OUT
7 IN
IN
IN
OUT OUT OUT OUT
8
OUT OUT OUT
IN
OUT OUT OUT
9 IN
OUT OUT
IN
OUT OUT OUT
10
OUT
IN
OUT
IN
OUT OUT OUT
11 IN
IN
OUT
IN
OUT
OUT OUT
12
OUT OUT
IN IN
OUT
OUT OUT
13 IN
OUT
IN IN
OUT
OUT OUT
14
OUT
IN IN IN
OUT
OUT OUT
15 IN
IN
IN
IN
OUT
OUT OUT
16
OUT OUT OUT OUT
IN
OUT OUT
17 IN
OUT OUT OUT
IN
OUT OUT
18
OUT
IN
OUT OUT
IN
OUT OUT
19 IN
IN
OUT OUT
IN
OUT OUT
20
OUT OUT
IN
OUT
IN
OUT OUT
21 IN
OUT
IN
OUT
IN
OUT OUT
22
OUT
IN IN
OUT
IN
OUT OUT
23 IN
IN
IN
OUT
IN
OUT OUT
24
OUT OUT OUT
IN IN
OUT OUT
25 IN
OUT OUT
IN IN
OUT OUT
26
OUT
IN
OUT
IN IN
OUT OUT
27 IN
IN
OUT
IN IN
OUT OUT
28
OUT
OUT
IN IN IN
OUT OUT
29 IN
OUT
IN IN IN
OUT OUT
30
OUT
IN IN IN IN
OUT OUT
31 IN
IN
IN
IN IN
OUT OUT
32
OUT OUT OUT OUT OUT
IN
OUT
33 IN
OUT OUT OUT OUT
IN
OUT
34
OUT
IN
OUT OUT OUT
IN
OUT
35 IN
IN
OUT OUT OUT
IN
OUT
36
OUT OUT
IN
OUT OUT
IN
OUT
37 IN
OUT
IN
OUT OUT
IN
OUT
38
OUT
IN IN
OUT OUT
IN
OUT
39 IN
IN
IN
OUT OUT
IN
OUT
40
OUT OUT OUT
IN
OUT
IN
OUT
41 IN
OUT OUT
IN
OUT
IN
OUT
42
OUT
IN
OUT
IN
OUT
IN
OUT
43 IN
IN
OUT
IN
OUT
IN
OUT
44
OUT OUT
IN IN
OUT
IN
OUT
45 IN
OUT
IN IN
OUT
IN
OUT
46
OUT
IN IN IN
OUT
IN
OUT
47 IN
IN
IN
IN
OUT
IN
OUT
48
OUT OUT OUT OUT
IN IN
OUT
