Allen-Bradley SLC 500 Series User manual

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Allen-Bradley
Allen-Bradley SLC 500
Setup for using an A-B SLC 500
Use the following procedure to ensure your target device is setup properly for the Allen-Bradley SLC
500. The procedure is in condensed format. Only the required settings are outlined. For additional
details, see Creating a New Project beginning on page 3.
Project Setup
The drawing is a diagram of the Project Setup dialog box. Each button will display an additional dialog
box. Many settings are options and are not required to establish communications. Verify the Project
name and Display Device Model are correct. Leave the Initial Screen name blank.
Project name:
Display Device
Model
Initial Screen
Display Touch Print
More
PLC & Protocols
CN1 PLC Type PLC Protocol name appears here
Port Protocol System
OK Cancel Help
Project Setup
Default Panel Name
Screen Saver Timeout
Panel Trigger Tag
Watchdog Tag
Watchdog timeout
PLC Protocol setup
Disable Beeper
Electrical Format
Serial Parameters
Project name appears in this field
Model description appears in this field
Project Notes
Print (Inactive)
PLC Type
Select the PLC type from the list box. (AB SLC DH485). See PLC Type on page 5.

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Port Button
Click the Port button to display the Serial Parameters dialog. The port values are automatically set to
standard default values. See Serial Parameters on page 6. The following settings are recommended for
AB SLC DH485.
Elect. Format RS422 Half Duplex (When using the HMI-CAB-C83 Cable)
or
Elect. Format RS232 (When using the HMI-CAB-C84 Cable)
Baud Rate 19200
Data Bits 8
Parity Even
Stop Bits 1
Handshake None
Protocol Button
Click the Protocol button to display the dialog box associated with the selected PLC.
The Source ID is the target display address on the DH485 network. The Destination ID is the PLC
address where the target display will get variable data. The Maximum node ID is the highest available
address on the DH485 network. The maximum ID should be set to the lowest possible number. Enter
Timeout in seconds. Click OK to return to the Project Setup dialog box.
Protected Files
Processor files with Owner set cannot be written to by QUICKPANEL



The Set and Clear Owner function allows a terminal to "own" one or more processor files on the
network. Ownership means that as long as the owner is active on the network, other terminals can not
access the on-line functions of the owned processor files. Note that only a programmer can own a node.
In the following example, station 1 is owned by node 0. Notice station node 1 has a max. address 31
followed by a forward slash and then the ownership node. If you see this on the display, a
QUICKPANELcannot write to that station. You must clear the owner.
0 TCP (31)
1 5/02 (31/0)
2 Term (31)
3
Connecting to the SLC 500
A single point connection is simply one target display connected directly to the program port of a single
SLC 500. This connection is made using the HMI-CAB-C83 cable.

QUICKDESIGNER Allen-Bradley •
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HMI-CAB-C83 Cable
This cable connects the target display serial port to the Allen-Bradley SLC 500 Programming Port.
TO TCP DEVICE
TO SLC 500
25-PIN MALE
8-PIN MODULAR PHONE
RJ-45
PROGRAM PORT
HMI-CAB-C83/A
RJ-45
shield
(--)
red
black
green TOP
10
(+) 11
15
16
7
GND 1
SHIELD orange
blue
white
brown
PROPRIETARY INFORMATION
THIS INFORMATION IS PROVIDED AS A
CONVENIENCE TO OUR CUSTOMERS.
YOU ARE NOT AUTHORIZED TO
CONSTRUCT THIS CABLE.
UNAUTHORIZED CABLES ARE
NOT SUPPORTED BY TOTAL CONTROL.
5
4
18
19
21
22
SLC 500 Network Connection for Programming Equipment (DH485)
This connection allows two devices to be connected to the PLC. In this case, a programming terminal
can be connected to the PLC using a 1747-PIC Interface Converter connected to the HMI-CAB-C84
cable.
The drawing shows the connections for adding a second device to the network connection.
HMI-CAB-C84
TO SLC 500
PROGRAM PORT
QUICKPANEL jr. SLC 500 Fixed I/O Controller
TO TCP DEVICE
TO: Allen-Bradley 1747-PIC
Interface Converter

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HMI-CAB-C84 Cable
This cable connects the target display serial port to the Allen-Bradley SLC 500 Programming Port. The
cable is designed to allow connection to additional devices such as an Allen-Bradley 1747-PIC
Interface Converter.
Warning: The maximum length of this cable is 6 feet. Do not attempt to make it longer.
25-PIN MALE
8-PIN MODULAR PHONE(FEMALE)
HMI-CAB-C84/A
8-PIN MODULAR PHONE(MALE)
RJ-45
TOP
25-pin male D
RS232
TO
RS422
CIRCUIT
BOARD shield
red
black
green
orange
blue
white
brown
-6
-1 (+)
-2 ( - )
-7 (G)
-8
-5 (E)
-4
-3
shield
red
black
green
orange
blue
white
brown
-6
-1
-2
-7
-8
-5
-4
-3
8-PIN MODULAR
PHONE JACK
8-PIN MODULAR
PHONE PLUG
CABLE LENGTH = 6'
CABLE LENGTH = 1'
PROPRIETARY INFORMATION
THIS INFORMATION IS PROVIDED AS A CONVENIENCE
TO OUR CUSTOMERS. YOU ARE NOT AUTHORIZED TO
CONSTRUCT THIS CABLE. UNAUTHORIZED CABLES ARE
NOT SUPPORTED BY TOTAL CONTROL.
THE RS232 CONVERTER CIRCUITS ARE CONTAINED ON
A CIRCUIT BOARD WITHIN THE 25-PIN D-SHELL. THE
ELECTRONIC CIRCUIT PROVIDES NETWORK CONTROL.
THE CIRCUIT DIAGRAM IS PROPRIETARY INFORMATION.
THE CABLE IS LICENSED FROM ALLEN-BRADLEY.
SLC 500 Network Connection using 1747 AIC Link Couplers (DH485)

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Connecting to a 1747 AIC Module (DH485)
Connect the HMI-CAB-C84 cable to the 1747 AIC Module as shown below.
HMI-CAB-C84
TO SLC 500
PROGRAM PORT
QUICKPANEL jr.
TO TCP DEVICE
TO: Allen-Bradley 1747-PIC
Interface Converter
Peripheral - J2
DH485 Interface
CPU -J1
1747-AIC MODULE
SLC 5/03 and SLC 5/04 Channel 0 Connection
The SLC 5/03 and SLC 5/04 processors let you operate DF1 communication protocol by means of the
RS-232 communication port, channel 0. In addition, the SLC 5/03 and SLC 5/04 processors support
DH485 communication via channel 0.
The 9-Pin connector on the SLC 5/03 and SLC 5/04 processors is programmable. The SLC 5/03 and
SLC 5/04 processors can be configured for port-to-port connection using the HMI-CAB-C52 cable.
Channel 0 must be set up as a DH485 master. This configuration can only read/write variables in the
local PLC. Since it is not dependent on network loading, this configuration will provide quick display
updates.

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HMI-CAB-C52 Cable
This cable is used to connect the target display to a SLC 5/03 and SLC 5/04 RS232 Channel 0 Port.
A label is placed on each end of the cable to indicate which device should be connected to that end.
One of the labels will also indicate the cable part number so you can quickly verify you are using the
right cable for your application. You can make your own cable using the following wiring diagram.
TO TCP DEVICE
TO PLC PORT
SHIELD
1
2
3
4
5
7
2
3
4
5
6
8
7
25 PIN MALE
9 PIN FEMALE
HMI-CAB-C52
TO PLC PORT
TO TCP DEVICE 1
SLC 5/03 and SLC 5/04 DH485 Connections
You can connect channel 0 of the SLC 5/03 and SLC 5/04 modules to the 1747-PIC to make a
connection to the DH485 network.
SLC 500 5/02 Modular Controller
QUICK PANEL Jr.
1747-AIC Link Coupler
HMI-CAB-C84
1747-PIC
Programming
Station
SLC5/04 Modular Controller
1747-PIC
SLC 5/04 CPU
RUN
FLT
BATT
FORCE
DH+
RS232
RUN REM PROG
Setup for using a SLC 5/03 and SLC 5/04 Channel 0
The procedure for setup of an AB SLC 5/03 Channel 0 is basically the same as for SLC500 DH485.
The Electrical Format must be set to RS232.

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SLC 5/04 Data Highway Plus
Data Highway Plus implements peer-to-peer communication with a token-passing scheme to rotate link
mastership among a maximum of 64 nodes. Since this method does not require polling, it helps provide
time-efficient reliable data transport.
The SLC 5/04 processor lets you operate DH+ communication protocol by means of the DH+
communication channel 1. The SLC 5/04 also supports full-duplex DF1 protocol using the DF1
channel 0.
The 3-pin connector is for actual DH+ communication and the 8-pin connector is for monitoring DH+
communication.
The DH+ LED provides an indication of the condition of the network communication. The color can be
green or red. A steady on condition indicates the processor is actively communicating on the network.
Flashing green indicates there are no active nodes on the network. Flashing red indicates there are
duplicate nodes on the link with the same node address.
SLC 5/04 CPU
RUN
FLT
BATT
FORCE
DH+
RS232
RUN REM PROG
DH+
Channel 1
DF1
Channel 0
SLC 5/04 DH+ Connection
The drawing shows a possible configuration for DH+.
SLC5/04 Modular Controller
SLC 5/04 CPU
RUN
FLT
BATT
FORCE
DH+
RS232
RUN REM PROG
PLC 5/15
LINE 2 BLUE
LINE 1 CLEAR
SHIELD
CN1
QUICKPANEL
DATA
HIGHWAY
PLUS
MODULE

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SLC 500 Tag Variables for DH485 Protocol
The following chart lists the legal tag variable names that can be used with the SLC 500 series. The
target display talks to the SLC500 using the DH485 protocol. The DH485 protocol requires each
device to have a node address. The Source ID is the target display node address and the Destination ID
is the node address for the SLC. (See the "Setup for using an AB SLC 500 PLC" section for details
about entering the source and destination ID's).
When there is a single point connection between a target display and a SLC500, the destination ID
(node address for SLC) becomes the default address for all variables. That is, if you use the tag variable
N7:100, the target display knows that this variable is located at the destination node address.
When the target display is connected to a DH485 network that includes multiple SLC nodes, there is an
optional variable naming element that will allow you to read information from any SLC node. The
additional element is _D, where the underscore D indicates a node address other than the Destination
ID node address.
In this example, the Source ID (target display address) has been set to 0 and the Destination ID (SLC
node address) has been set to 1. There is an additional SLC on the DH485 network located at node
address 3. To read information from node address 1, the variable would be N7:100. Remember that the
Destination ID is the default node address. To read information from node address 3, the variable
would be N7:100_3. The general format for tag variables is shown below.
N7:100/00_D Destination Node Address
Bit Address
Element
File Type
SLC 500 Tag Variables for DH+ Protocol
The DH+ tag variables are the same as the PLC5 tag variables except for the following items.
1. You cannot read or write Input (I) or Output (O) variables in the SLC 5/04.
2. The SLC 5/04 can read/write string variables (ST) while the PLC 5 cannot.

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Tag Variable Table
File Type File # Element Bit Range Write Value
O0:00 0 0-255 (dec) /0 - /15 Y -32768 to 32767
OD:00 0 0-255 (dec) /0 - /15 Y -32768 to 32767
OO:00 0 0-377 (oct) /0 - /17 Y -32768 to 32767
I1:00 1 0-255 (dec) /0 - /15 N -32768 to 32767
ID:00 1 0-255 (dec) /0 - /15 N -32768 to 32767
IO:00 1 0-377 (oct) /0 - /17 N -32768 to 32767
S2:00 or S: 2 0-15 5/01(2) /0 - /15 N -32768 to 32767
0-32 5/02(2)
0-83 5/03(2)
B3: or Bn: n:=9-255 0-255 /0 - /15 Y -32768 to 32767
T4: or Tn: n:=9-255 0-255.ACC Y 0-32767
0-255.PRE Y 0-32767
0-255.EN Y 0-1
0-255.TT Y 0-1
0-255.DN Y 0-1
C5: or Cn: n:=9-255 0-255.ACC Y -32768 to 32767
0-255.PRE Y -32768 to 32767
0-255.DN Y 0-1
0-255.CU Y 0-1
0-255.CD Y 0-1
0-255.OV Y 0-1
0-255.UN Y 0-1
0-255.UA Y 0-1
R6: or Rn: n:=9-255 0-255.LEN Y -32768 to 32767
0-255.POS Y -32768 to 32767
0-255.DN Y 0-1
0-255.EN Y 0-1
0-255.ER Y 0-1
0-255.UL Y 0-1
0-255.IN Y 0-1
0-255.FD Y 0-1
N7: or Nn: n:=9-255 0-255 /0 - /15 Y -32768 to 32767
ND7: or NDn:n:=9-255 0-255 Y -2147M to 4294M
NL7: or NLn: n:=9-255 0-255 Y -2147M to 4294M
F8: or Fn: n:=9-255 0-255 NS Y -2147M to 4294M
D9: or Dn: n:=9-255 0-255 NS Y 0-9999
A9: or An: n:=9-255 0-255 NS Y Null - ASCII
ST9: or STn: 1-9999 NS Y 0-65535
Note 1: File numbers other than the default value shown are 9-255. Ex: B5:0 would be invalid.
Note 2: Address range for I and O are in decimal as maped in the M files. Address Max for S is dependent on the
PLC.
Note 3: Bits may wrap into other words. Ex: B3:5/41 = B3:7/9
Note 4: Integer types (range –32768 to 32767) may be configured as unsigned (range 0 to 65535)
Note 5: Node ID Max. is 254 for the SLC DF1 and 31 for the SLC 485.

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Additional Information
Network Performance
The following are major configuration factors that have a significant effect on network performance:
•The number of nodes on the link
•The addresses of those nodes
•The maximum node address selection
The number of nodes on the link directly affects the data transfer time between nodes. Unnecessary
nodes slow the data transfer rate. The maximum number of nodes on the link is 32.
The best link performance occurs when node addresses start at 0 and are assigned in sequential order.
Also, initiators such as personal computers should be assigned the lowest numbered addresses to
minimize the time required to initialize the link. If all nodes are expected to be connected at all times,
this is really all you need to do.
The maximum node address parameter should be set as low as possible. This minimizes the amount of
time used in soliciting successors when initializing the link. If all nodes are addressed in sequence from
0, and the maximum node address is equal to the address of the highest addressed node, the token
rotation will improve by the amount of time required to transmit a solicit successor packet plus the slot
timeout value.
NOTE - The SLC500 processors set the maximum node address to 31 when power is cycled increasing
initialization and response time of the link.
DH-485 Cable
The suggested DH-485 communication cable is BELDEN #9842 cable. The cable is jacketed and
shielded with two twisted wire pair and a drain wire.
DH-485 Connections
One (only one) of the Link Couplers at the end of the link must have Terminals 1 and 2 of the link
connector jumpered together. This provides an Earth Ground connection for the shield of the
communications cable.
Link Couplers at both ends of the link must have Terminals 5 and 6 of the link connectors jumpered
together. This connects the termination impedance that is built into each link coupler as required by the
DH-485 specification.
6 - TERM
5 - A
4 - B
3 - COMMON
2 - SHIELD
1 - CHS GND
Allen-Bradley SLC 500 DF1