UM353-1
To APACS ACM
Serial Port
Note 5
Cable Label
2, TxD
3, RxD
RS232
Cable,
4
Note 1
8, RTS
5, SG
8.5-26 Vdc
A. Modbus Communications, APACS ACM to Model 353 or Model 354
To Personal Computer
Serial Port,
Note 6
Cable Label
2, RxD
3, TxD
RS232
4, DTR
Cable,
8, CTS
Note 1
5, SG
RTS lead is not used.
Cut back and insulate.
8.5-26 Vdc
B. Modbus Communications, Personal Computer to Model 353 or Model 354
Notes:
1. RS232 cable must be shielded and less than 50 feet (15 meters) in length. Recommended cable is
Belden 9927, 24 AWG, or equivalent. For an assembled cable, order Siemens PN 16137-191.
2. RS485 recommended cable is Belden 9842, 24 AWG, 120 ohm or equivalent.
3. Up to 32 Moore 352Ps, Moore 353s, Moore 354s, and i|pac's can be connected.
4. A user-supplied 120 ohm network termination resistor should be installed on the last device on the network.
5. In ACM's SERIAL Function Block, set Flow Control to 1.
6. Assembled cable above has DB9 (plug) connector. Connection to computer serial port may require a
DB9 (socket/receptacle) gender adapter.
7. Connection between F and J provided by Entrelec converter.
FIGURE 8-24 Modbus Communications, Moore 353 and 354 to
March 2003
RS485 to RS232
Isolated Converter,
Entrelec ILPH 084.233.11
M
A
(TD)
RxD
TxD+
B
(RD)
K
RxD+
TxD
L
D
(RTS)
CTRL
TxD-
E
(SG)
G
RxD-
COM
C
J
P+
F
P-
Jumper Settings
Note 7
0V
Rt
5V
R
V+
E
V-
Single Point
Earth Ground
RS485 to RS232
Isolated Converter,
Entrelec ILPH 084.233.11
A
M
(RD)
TxD+
RxD
B
K
(TD)
RxD+
TxD
L
D
CTRL
TxD-
(SG)
E
G
RxD-
COM
C
J
P+
F
P-
Jumper Settings
Note 7
0V
Rt
5V
R
V+
E
V-
Single Point
Earth Ground
APACS ACM and Personal Computer
Model 353
Model 353
or 354
NCA
3
RS485
Cable,
NCB
Note 2
4
6
G
Case/
Safety
Ground
Common Ground Bus
Model 353
Model 353
or 354
NCA
3
RS485
Cable,
NCB
Note 2
4
6
G
Case/
Safety
Ground
Common Ground Bus
Installation
or 354
3
120
Note 4
4
6
G
Case/
Safety
Ground
or 354
3
120
Note 4
4
6
G
Case/
Safety
Ground
8-23