Make communication connections, Connections for safety-related communication, High-speed counter terminals – Rockwell Automation 1753-L32BBBP-8A GuardPLC 1800 Controller User Manual
Page 15
GuardPLC 1800 Controllers 15
Rockwell Automation Publication 1753-IN002C-EN-P - June 2010
High-speed Counter Terminals
Terminals accommodate wires up to 1.5 mm
2
(16 AWG). Counters are connected to these
terminals.
Make Communication Connections
The controller supports separate connections for safety and nonsafety-related communication.
Connections for Safety-related Communication
The controller has four 10/100BaseT, RJ45 connectors to provide communication via
GuardPLC Ethernet protocol to distributed I/O and other GuardPLC controllers, OLE for
Process Control (OPC) servers, and with the programming software. Connectors 1 and 2 are on
the bottom side on the left. Connectors 3 and 4 are on the top side on the left. All four
connectors and the GuardPLC processor are connected together by an internal Ethernet switch.
The switches are auto-detect. Either crossover or straight-through Ethernet cabling can be used.
Star or line configurations are available. Make sure that a network loop is not generated. Data
packets must be able to reach a node only via a single path.
Terminal Number
Designation
Counter Function
Gray Code Function
65
A1
Input A1
bit 0 (LSB)
66
B1
Input B1
bit 1
67
Z1
Input Z1
bit 2 (MSB)
68
L-
Common reference pole
69
A2
Input A2
bit 0 (LSB)
70
B2
Input B2
bit 1
71
Z2
Input Z2
bit 2 (MSB)
72
L-
Common reference pole
IMPORTANT
D
Do not terminate unused inputs.
TIP
For more information on GuardPLC system wiring and counter
configuration, see the GuardPLC Controller Systems User Manual,
public
.
HSC
A1
B1 Z1
L-
A2
B2 Z2
L-
65
66
67
68
71
72
69
70