Rice Lake EtherNet/ IP Assembly instructions

88537
EtherNet / IP™
Interface for 520 and 920i ™Indicators
Installation and
Programming Manual

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© 2006 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
January 2006
Contents
About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
2.0 Installation ................................................................................................................................... 2
2.1 Installing the EtherNet/IP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.1 Installing EtherNet/IP Option in the 920i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.2 Installing EtherNet/IP Option in the 520. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 EtherNet/IP Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0 Commands ................................................................................................................................... 6
3.1 Output Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Input Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 Appendix .................................................................................................................................... 13
4.1 Configuration Procedure for 920i and PLC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 EDS File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 EtherNet/IP Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
EtherNet/IP Interface Limited Warranty ................................................................................................ 17

ii 520/920i EtherNet/IP Installation and Programming Manual

Introduction 1
About This Manual
This manual provides information needed to install
and use the Rice Lake Weighing Systems
EtherNet/IP™1Interface. The EtherNet/IP Interface
allows 520 and 920i indicators to communicate with
an EtherNet/IP network.
This manual applies to Version 2.05 or later of the
920i indicator software, Version 1.07 or later of the
520 indicator software. See the 520 or 920i
Installation Manual for additional installation
information and detailed descriptions of indicator
functions.
The EtherNet/IP Interface is installed inside the
indicator enclosure. Installation in NEMA 4X
stainless steel enclosures permits use in washdown
environments.
Some procedures described in this manual
require work inside the indicator enclosure.
These procedures are to be performed by
qualified service personnel only.
Authorized distributors and their
employees can view or download this
manual from the Rice Lake Weighing
Systems distributor site at www.rlws.com.
1.0 Introduction
EtherNet/IP (“Ethernet industrial protocol”) is an
open industrial networking standard that allows
control applications to make use of widely-available
Ethernet communications components and physical
media. EtherNet/IP is based on the IEEE 802.3
Ethernet standard, the TCP/IP protocol suite, and
CIP™(Common Industrial Protocol), the real-time I/O
and information protocol used by both DeviceNet™2
and ControlNet™3networks.
The EtherNet/IP Interface returns weight and status
information from a 520 or 920i indicator to the
network and provides limited control of indicator
functions to the programmer. Indicator configuration
and calibration cannot be performed through the
EtherNet/IP Interface.
1. EtherNet/IP™ is a trademark of ControlNet International,
Ltd. under license by Open DeviceNet Vendor Association,
Inc.
2. CIP™ and DeviceNet™ are trademarks of the Open DeviceNet Vendor Association.
3. ControlNet™ is a trademark of ControlNet International, Ltd.

2520/920i EtherNet/IP Installation and Programming Manual
2.0 Installation
The EtherNet/IP Interface hardware consists of a
dual-board option card. EtherNet/IP-specific functions
are provided by a EtherNet/IP module, which is
factory-installed onto a bus adapter card. The bus
adapter card plugs into an open option card slot on the
520 or 920i CPU board (or expansion board) and
provides power and access from the indicator bus to
the EtherNet/IP module.
This section describes the procedures used to install
the EtherNet/IP Interface into the 520 and 920i
indicators.
2.1 Installing the EtherNet/IP Interface
Use the following procedure to install the EtherNet/IP
Interface into 520 and 920i indicators.
2.1.1 Installing EtherNet/IP Option in the 920i
Use the following procedure to install the EtherNet/IP
Interface in the 920i indicator:
1. Disconnect indicator from power source.
Disconnect power before removing indicator
backplate.
The 920i has no on/off switch. Before
opening the unit, ensure the power cord is
disconnected from the power outlet.
2. Open indicator enclosure. For indicator models
with backplates, place indicator face-down on
an antistatic work mat. Remove screws that
hold the backplate to the enclosure body.
Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working inside the
indicator enclosure.
3. Carefully align the large connector (J1) on the
bus adapter card with connector J5 or J6 on the
920i CPU board. Press down to seat the bus
adapter card in the CPU board connector.
4. Use the screws and lockwashers provided in
the option kit to secure the other end of the
option card to the threaded standoffs on the
CPU board (see Figures 2-4 and 2-1).
5. Wire the card to the network as described in
Section 2.2 on page 4.
6. Use cable ties to secure loose cables inside the
enclosure.
Figure 2-1. Option Installed on 920i CPU Board
7. For indicator models that include a backplate,
position the backplate over the enclosure and
reinstall the backplate screws. For the 920i
desktop and universal models, use the torque
pattern shown in Figure 2-2 to prevent
distorting the backplate gasket. Torque screws
to 15 in-lb (1.7 N-m).
Figure 2-2. 920i Enclosure Backplate
8. Ensure no excess cable is left inside the
enclosure and tighten cord grips.
9. Reconnect power to the indicator. The
indicator automatically recognizes all
installed option cards when the unit is
powered on. No hardware-specific
configuration is required to identify the
newly-installed EtherNet/IP Interface to the
system.
1
3
5
14
17
16 12
9
8
7
10
11
18
15
4
2
6
13
Torque backplate screws
to 15 in-lb (1.7 N-m)

Installation 3
Figure 2-3. Bus Adapter Card and EtherNet/IP Module
2.1.2 Installing EtherNet/IP Option in the 520
Use the following procedure to install the EtherNet/IP
Interface in the 520 indicator:
1. Disconnect indicator from power source.
Disconnect power before removing
indicator enclosure cover.
The 520 has no on/off switch. Before
opening the unit, ensure the power cord is
disconnected from the power outlet.
2. Place indicator on an antistatic work mat.
Remove screws that hold the enclosure cover
to the enclosure body.
Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working inside the
indicator enclosure.
3. Carefully align the large option card
connector with connector J2 on the CPU
board (see Figure 2-4). Press down to seat the
option card in the CPU board connector.
4. Use screws provided in the option kit to
secure the other end of the option card to the
threaded standoffs on the CPU board.
5. Install terminal block end of cable assembly
to EtherNet/IP option card.
Figure 2-4. Option Installed 520 CPU Board
6. Remove existing cover plate.
7. Re-use kep nuts to secure EtherNet/IP cover
plate to standoffs located on inside of
enclosure backplate (see Figure 2-5).
8. Once cabling is complete, position the cover
over the enclosure and reinstall the screws.
9. Reconnect power to the indicator.
Figure 2-5. EtherNet/IP 520 Backplate Cable Assembly
10. The indicator automatically recognizes all
installed option cards when the unit is
powered on. No hardware-specific
configuration is required to identify the
newly-installed EtherNet/IP interface to the
system.
J2
TEST
3.3V
GND
J1
EtherNet/IP
Module
LED Array
DIP Switch
RJ-45
Connector

4520/920i EtherNet/IP Installation and Programming Manual
2.2 EtherNet/IP Network Connections
Feed the EtherNet/IP network cable through the
indicator cord grip. Allow enough cable for routing
along inside of enclosure to connector on the
EtherNet/IP module. Connect network cables to
connector on the EtherNet/IP module (see Figure 2-3),
then use cable ties to secure network cables to the
cable tie mounts.
2.3 LED Status Indicators
An LED array on the EtherNet/IP module provides
status information for troubleshooting (see
Figure 2-6):
• LED 1 provides status about the link
• LED 2 provides status information about the
EtherNet/IP module
• LED 3 provides network status
• LED 4 can be configured to indicate whenever a
packet is sent or received
The LED array can be configured using the Anybus
IPConfig software (LED configuration 1,2,or 3) to
provide different status information, as described
below.
Figure 2-6. EtherNet/IP Status LED Module
LED 1: Link Status
LED 2: Module Status
LED 2 can be set to any of four configuration states,
1–4, as described in the following tables. LED
configuration 4 deactivates LED 2.
LED 1 Color State Description
Green On Module has a link
Off Link not sensed
Table 2-1. LED 1 states, using LED Configuration 1
LED 1 Color State Description
Green On Module has a link
Off Link not sensed
Flashing Module receiving/transmitting
Table 2-2. LED 1 states, using LED Configuration 2
1
2
3
4
Activity
Module status
Link status
Network status
LED 2 Color State Description
Green Flashing
at 1 Hz
IP address not set using
configuration switch
Red Flashing
at 1 Hz
MAC address not valid
Flashing
at 2 Hz
Failed to load Ethernet
configuration from FLASH
Flashing
at 4 Hz
Internal error
On Duplicate IP address detected
Table 2-3. LED 2 states, using LED Configuration 1
LED 2 Color State Description
Green On Operating at 100 Mbps
Off Operating at 10 Mbps
Red 2 flashes on,
long off
MAC address not valid
3 flashes on,
long off
Failed to load Ethernet
configuration from FLASH
4 flashes on,
long off
Internal error
5 flashes on,
long off
Duplicate IP address
detected
Table 2-4. LED 2 states, using LED Configuration 2
LED 2 Color/State Description
Steady off No power to module
Steady green Module operating correctly
Flashing green Module not configured
Flashing red Recoverable fault detected
Steady red Internal error detected
Flashing red/green Performing power-on self-test
Table 2-5. LED 2 states, using LED Configuration 3

Installation 5
LED 3: Network Status
LED 3 can be set to configuration states 1–3. In LED
configuration 1, LED 3 flashes the number of
established connections to the module; LED
configuration 2 deactivates LED 3.
LED 4: Activity
LED 4 can be set to configuration state 1 or 2. In LED
configuration 1, LED 4 flashes green each time a packet
is transmitted or received. LED configuration 2
deactivates LED 4 and provides transmit/receive
indication on LED 1.
Watchdog LED
A single bi-color LED on the surface of the
EtherNet/IP module provides diagnostic information
for debugging the module itself. Table 2-7 lists the
indications provided by the debugging LED.
LED 3 Color/State Description
Steady off No power to module or no IP address
assigned
Steady green At least one EtherNet/IP connection
established
Flashing green No EtherNet/IP connections
Flashing red Connection time-out
Steady red Duplicate IP address detected
Flashing red/green Performing power-on self-test
Table 2-6. LED 3 states, using LED Configuration 3
Status Description
Off No power
Red, 4Hz DPRAM check fault
Red, 2Hz ASIC and FLASH ROM check fault
Red, 1Hz RAM check fault
Green, 2Hz Module not initialized
Green, 1Hz Module initialized and running
Table 2-7. Debugging LED Indications

6520/920i EtherNet/IP Installation and Programming Manual
3.0 Commands
Commands are used by the EtherNet/IP master device
to send and receive data from the EtherNet/IP
Interface as integer or floating-point data. The master
sends eight bytes in the output format (used to write
commands to the indicator) and reads eight bytes in
the input format (used to read data from the indicator).
Decimal Point Handling
Integer commands return no decimal point information
to the master. For example, a value of 750.1 displayed
on the indicator is returned to the master as 7501.
Floating point commands support decimal point
information with no special handling.
3.1 Output Command Format
To perform a command, the master uses the output
command format to send four 16-bit words to the
EtherNet/IP Interface. These four words contain the
command and any parameters necessary to execute it.
The output command format is shown in Table 3-1.
The contents of each output command format word
are described below:
Command number
The number representing the indicator command is
sent in the first word. Table 3-2 lists the commands
that can be specified for 520 and 920i indicators.
NOTE: A lockout feature that looks for any change in the
output format data is incorporated into the indicator receive
mechanism to prevent inundation by the same command.
Repeated commands must be separated by any other valid
command/parameter/value combination.
Word Description
Word 1 Command number
Word 2 Parameter
Word 3 Value (MSW)
Word 4 Value (LSW)
Table 3-1. Output Command Format
Decimal Hex Command
00x000 Return Status and Weight (integer)
10x001 Display Channel
20x002 Display Gross Weight
30x003 Display Net Weight
40x004 Display Count
90x009 Gross/Net key press (toggle)
10 0x00A Zero
11 0x00B Display Tare
Table 3-2. 520 / 920i Remote Commands
12 0x00C Enter Tare
13 0x00D Acquire Tare
14 0x00E Clear Tare
16 0x010 Primary Units
17 0x011 Secondary Units
18 0x012 Tertiary Units
19 0x013 Units key press (toggle units)
20 0x014 Print Request
21 0x015 Display Accumulator
22 0x016 Clear Accumulator
23 0x017 Push Weight to Accumulator
32 0x020 Return Gross (integer)
33 0x021 Return Net (integer)
34 0x022 Return Tare (integer)
35 0x023 Return Count
37 0x025 Return Current Display (integer)
38 0x026 Return Accumulator (integer)
39 0x027 Return Rate of Change (integer)
40 0x028 Return Peak (integer)
95 0x05F Set Batching State
96 0x060 Batch Start
97 0x061 Batch Pause
98 0x062 Batch Reset
99 0x063 Batch Status
112 0x070 Lock Indicator Front Panel
113 0x071 Unlock Indicator Front Panel
114 0x072 Set Digital Input ON
115 0x073 Set Digital Input OFF
116 0x074 Read Digital Input Status
253 0x0FD No operation
254 0x0FE Reset Indicator
256 0x100 Return Status as Weight (float)
268 0x10C Set Tare (float)
288 0x120 Read Gross (float)
289 0x121 Read Net (float)
290 0x122 Read Tare (float)
291 0x123 Read Piece Count (float)
293 0x125 Read Current Display (float)
294 0x126 Read Accumulator (float)
295 0x127 Read Rate of Change (float)
Decimal Hex Command
Table 3-2. 520 / 920i Remote Commands (Continued)

Commands 7
Parameter value
To allow communication with a multi-scale indicator,
the scale number is sent in the second word of the
output command format. Zero (0) represents the
current scale. Certain commands require a parameter
other than a scale number, such as a slot number,
setpoint number, or other selection parameter. See the
command descriptions in Section 3.3 on page 8 for
specific command requirements.
Value
The third and fourth words of the output format are
used to pass value data on certain commands. Values
entered in these words are treated as unsigned long
integers or floating-point values, depending on the
command.
3.2 Input Command Format
In response to a command, the EtherNet/IP Interface
returns data and status information to the master as
four 16-bit words. This information is returned in the
input command format shown in Table 3-3.
The value type can be set for those commands that do
not specify integer or floating point data by sending a
command 0x000 to specify integer data or command
0x100 for floating-point data. The value type is
returned in the status word (bit 14) of the input format.
Command number
The first word echoes the command number. If the
command fails or is not recognized, the negative of
the command number is returned to signal the error.
Status Data
Indicator status data is returned in the second word
(see Table 3-4). Batch commands return batch status
in place of the low byte (see Table 3-5). Setpoint
commands return batch status in the low byte of the
status word and the setpoint number in the high byte.
Value
Weight data is returned to the master in the third and
fourth words of the input command format, depending
on the command and the value type. The weight data
returned is the displayed weight after the command is
executed, unless the command specifies otherwise.
296 0x128 Read Peak (float)
304 0x130 Set Setpoint Value (float)
305 0x131 Set Setpoint Hysteresis (float)
306 0x132 Set Setpoint Bandwidth (float)
307 0x133 Set Setpoint Preact (float)
320 0x140 Read Setpoint Value (float)
321 0x141 Read Setpoint Hysteresis (float)
322 0x142 Read Setpoint Bandwidth (float)
323 0x143 Read Setpoint Preact (float)
Word Description
Word 1 Command number
Word 2 Status
Word 3 Value (MSW)
Word 4 Value (LSW)
Table 3-3. Input Command Format
Decimal Hex Command
Table 3-2. 520 / 920i Remote Commands (Continued)
Word 2
Bit
Indicator Status Data
Value=0 Value=1
00 Error No error
01 Tare not entered Tare entered
02 Not zero Center of zero
03 Weight invalid Weight OK
04 Standstill In motion
05 Primary units Other units
06 Tare not acquired Tare acquired
07 Gross weight Net weight
08 Channel number
(NOTE: Value 0 represents scale #32)
09
10
11
12
13 Not used
14 Integer data Floating point data
15 Positive weight Negative weight
Table 3-4. Indicator Status Data Format
Word 2
Bit
Batch Function Status Data
Value=0 Value=1
00 Digital input 4 OFF
(520) Error
Digital input 4 ON
(520) No error
01 Digital input 3 OFF Digital input 3 ON
02 Digital input 2 OFF Digital input 2 ON
03 Digital input 1 OFF Digital input 1 ON
04 Batch not paused Batch paused
05 Batch not running Batch running
06 Batch not stopped Batch stopped
07 Alarm OFF Alarm ON
Table 3-5. Batch Function Status Data Format

8520/920i EtherNet/IP Installation and Programming Manual
3.3 Command Descriptions
NOTE: For all commands that require a scale number, a value
of 0 indicates the current scale. Unless otherwise specified,
the indicator returns weight and status data for the specified
scale.
Return Status and Current Weight as Integer
Command: 0, 0x000
Parameter: Scale number
Command 0 returns the status and weight of the
specified scale in integer format, without changing the
display. This command also causes the
format-independent commands to return a value in the
integer format.
Display Channel
Command: 1, 0x001
Parameter: Scale number
Command 1 causes the weight of the specified scale to
be displayed and returned in its current mode and
format. This command is valid for the 920i only.
Display Gross Weight
Command: 2, 0x002
Parameter: Scale number
Command 2 causes the gross weight of the specified
scale to be displayed and returned.
Display Net Weight
Command: 3, 0x003
Parameter: Scale number
Command 3 causes the net weight of the specified
scale to be displayed and returned.
Display Piece Count
Command: 4, 0x004
Parameter: Scale number
Command 4 causes the piece count on the specified
scale to be displayed and returned. This command is
valid only for the 520 indicator, and only if count
mode is enabled.
Gross/Net Key Press (toggle mode)
Command: 9, 0x009
Parameter: Scale number
Command 9 toggles between gross and net mode (and
count mode, if enabled). If a scale number other than 0
is specified, the action may not be evident until the
specified scale is displayed.
Zero
Command: 10, 0x00A
Parameter: Scale number
Command 10 performs a zero operation on the current
scale.
Display Tare
Command: 11, 0x00B
Parameter: Scale number
Command 11 causes the tare weight on the specified
scale to be displayed. If a scale number other than 0 is
specified, the indicator first causes the specified scale
to be displayed. The tare data continues being
returned even if the display times out and returns to
another mode.
Enter Tare (integer)
Command: 12, 0x00C
Parameter: Scale number
Value: Tare weight
Command 12 enters a tare for the scale selected. Tare
data must be in integer format. The indicator
continues to return weight data in the current mode for
the specified scale.
Acquire Tare (simulate TARE key press)
Command: 13, 0x00D
Parameter: Scale number
Command 13 acquires a tare based on the weight
currently on the specified scale. The indicator
continues to return weight data in the current mode for
the specified scale.
Clear Tare
Command: 14, 0x00E
Parameter: Scale number
Command 14 clears the tare for the specified scale.
The indicator continues to return weight data in the
current mode for the specified scale.
Primary Units
Command: 16, 0x010
Parameter: Scale number
Command 16 switches the current format of the
specified scale to the primary units configured for that
scale.
Secondary Units
Command: 17, 0x011
Parameter: Scale number
Command 17 switches the current format of the
specified scale to the secondary units configured for
that scale.
Tertiary Units
Command: 18, 0x012
Parameter: Scale number
Command 18 switches the current format of the
specified scale to the tertiary units configured for that
scale, if available. This command is valid for the 920i
only.
Units Key Press (toggle units)
Command: 19, 0x013
Parameter: Scale number
Command 19 toggles the current format of the
specified scale to the next units configured for that
scale, as available.

Commands 9
Print Request
Command: 20, 0x014
Parameter: Scale number
Command 20 causes the indicator to execute a print
command for the current scale.
Display Accumulator
Command: 21, 0x015
Parameter: Scale number
Command 21 causes the value of the accumulator for
the specified scale to be displayed and returned. This
command is only valid if the accumulator for the
specified scale is enabled.
Clear Accumulator
Command: 22, 0x016
Parameter: Scale number
Command 22 clears the value of the accumulator for
the specified scale. This command is only valid if the
accumulator for the specified scale is enabled.
Push Weight to Accumulator
Command: 23, 0x017
Parameter: Scale number
Command 23 adds the net weight on the specified
scale to the value of the accumulator for the specified
scale. The scale must return to net zero between
accumulations. The indicator returns the accumulated
weight data for the specified scale. This command is
only valid if the accumulator for the specified scale is
enabled.
Return Gross as Integer
Command: 32, 0x020
Parameter: Scale number
Command 32 returns the gross weight value for the
specified scale as an integer.
Return Net as Integer
Command: 33, 0x021
Parameter: Scale number
Command 33 returns the net weight value for the
specified scale as an integer.
Return Tare as Integer
Command: 34, 0x022
Parameter: Scale number
Command 34 returns the tare weight value for the
specified scale as an integer.
Return Piece Count
Command: 35, 0x023
Parameter: Scale number
Command 35 returns the piece count value for the
specified scale. This command is valid only for the
520 indicator, and only if count mode is enabled.
Return Current Display as Integer
Command: 37, 0x025
Parameter: Scale number
Command 37 returns the weight value for the
specified scale as currently displayed. This may
include gross, net, tare, piece count, or accumulator
values, as enabled. On the 920i, the weight value is
returned in the mode used to display a scale widget.
Return Accumulator as Integer
Command: 38, 0x026
Parameter: Scale number
Command 38 returns the accumulator value for the
specified scale. This command is only valid if the
accumulator for the specified scale is enabled.
Return Rate of Change as Integer
Command: 39, 0x027
Parameter: Scale number
Command 39 returns the current rate of change value
for the specified scale. This command is valid only for
the 920i.
Return Peak as Integer
Command: 40, 0x028
Parameter: Scale number
Command 40 returns the net peak value for the
specified scale. This command is valid only for the
520 indicator, and only if the peak hold function is
enabled.
Set Batching State
Command: 95, 0x05F
Parameter: State (0 = off; 1 = auto; 2 = manual)
Command 95 sets the batching (BATCHNG)
parameter. Indicator status is returned with the current
weight for the last scale specified.

10 520/920i EtherNet/IP Installation and Programming Manual
Batch Start
Command: 96, 0x060
Parameter: Scale number
Command 96 starts a batch program from the current
step after a stop, pause, or reset. Batch status is
returned with the current weight for the specified
scale.
Batch Pause
Command: 97, 0x061
Parameter: Scale number
Command 97 pauses a batch program at the current
step. Batch status is returned with the current weight
for the specified scale.
Batch Reset
Command: 98, 0x062
Parameter: Scale number
Command 98 stops a batch program and resets it to
the first batch step. Batch status is returned with the
current weight for the specified scale.
Batch Status
Command: 99, 0x063
Parameter: Scale number
Command 99 returns the status of a batch. Batch
status is returned with the current weight for the
specified scale.
Lock Front Panel of Indicator
Command: 112, 0x070
Parameter: Scale number
Command 112 disables all the keys on the front panel
of the indicator. Indicator status is returned with the
current weight for the specified scale.
Unlock Front Panel of Indicator
Command: 113, 0x071
Parameter: Scale number
Command 113 re-enables all the keys on the front
panel of the indicator. Indicator status is returned with
the current weight for the specified scale.
Set Digital Output ON
Command: 114, 0x072
Parameter: Slot number
Value: Bit number
Command 114 sets the specified digital output ON
(active). Use slot number 0 for onboard digital
outputs. Indicator status is returned with the current
weight for the last scale specified.
Set Digital Output OFF
Command: 115, 0x073
Parameter: Slot number
Value: Bit number
Command 115 sets the specified digital output OFF
(inactive). Use slot number 0 for onboard digital
outputs. Indicator status is returned with the current
weight for the last scale specified.
Read Digital I/O
Command: 116, 0x074
Parameter: Slot number
Command 116 returns the status for all digital I/O in
the specified slot in words 3and 4 (On the 520, status
is returned only for the digital inputs.) Use slot
number 0 for onboard digital I/O. Indicator status is
returned in the status area for the last scale specified.
No Operation
Command: 253, 0x0FD
Parameter: Scale number
Command 253 provides a command to use between
operations, as necessary, without causing the indicator
to perform any action. Indicator status and weight for
the specified scale is returned.
Reset Indicator
Command: 254, 0x0FE
Parameter: None
Command 254 provides a command to remotely reset
the indicator. No data is returned.
Return Status and Current Weight as Float
Command: 256, 0x100
Parameter: Scale number
Command 256 returns the status and weight of the
specified scale in floating-point format, without
changing the display. This command also causes the
format-independent commands to return a value in the
floating-point format.
Set Tare as Float
Command: 268, 0x10C
Parameter: Scale number
Value: Tare weight
Command 268 enters a tare for the scale selected in
floating-point format. The indicator returns the tare
weight as taken, or 0 for no tare.

Commands 11
Read Gross Weight as Float
Command: 288, 0x120
Parameter: Scale number
Command 288 returns the gross weight value for the
specified scale in floating-point format.
Read Net Weight as Float
Command: 289, 0x121
Parameter: Scale number
Command 289 returns the net weight value for the
specified scale in floating-point format.
Read Tare as Float
Command: 290, 0x122
Parameter: Scale number
Command 290 returns the tare weight value for the
specified scale in floating-point format.
Read Piece Count as Float
Command: 291, 0x123
Parameter: Scale number
Command 291 returns the piece count value for the
specified scale in floating-point format. This
command is only valid for the 520, and only if count
mode is enabled.
Read Current Display as Float
Command: 293, 0x125
Parameter: Scale number
Command 293 returns the weight value for the
specified scale as currently displayed in floating-point
format. This may include gross, net, tare, piece count,
rate-of-change, or accumulator values, as enabled. On
the 920i, the weight value is returned in the mode used
to display a scale widget.
Read Accumulator as Float
Command: 294, 0x126
Parameter: Scale number
Command 294 returns the accumulator value for the
specified scale in floating-point format. This
command is only valid if the accumulator for the
specified scale is enabled.
Read Rate of Change as Float
Command: 295, 0x127
Parameter: Scale number
Command 295 returns the current rate of change value
for the specified scale in floating-point format. This
command is only valid for the 920i.
Read Peak Value as Float
Command: 296, 0x128
Parameter: Scale number
Command 296 returns the net peak value for the
specified scale in floating-point format. This
command is only valid for the 520, and only if the
peak hold function is enabled.
Set Setpoint Value as Float
Command: 304, 0x130
Parameter: Setpoint number
Value: Target value
Command 304 sets the target value for the specified
setpoint in floating-point format. This command is
only valid if the setpoint is enabled and requires a
target value.
Set Setpoint Hysteresis as Float
Command: 305, 0x131
Parameter: Setpoint number
Value: Hysteresis value
Command 305 sets the hysteresis value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a hysteresis value.
Set Setpoint Bandwidth as Float
Command: 306, 0x132
Parameter: Setpoint number
Value: Bandwidth value
Command 306 sets the bandwidth value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a bandwidth value.
Set Setpoint Preact as Float
Command: 307, 0x133
Parameter: Setpoint number
Value: Preact value
Command 307 sets the preact value for the specified
setpoint in floating-point format. This command is
only valid if the setpoint is enabled and requires a
preact value.
Read Setpoint Value as Float
Command: 320, 0x140
Parameter: Setpoint number
Command 320 returns the target value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a target value.
Read Setpoint Hysteresis as Float
Command: 321, 0x141
Parameter: Setpoint number
Command 321 returns the hysteresis value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a hysteresis value.
Read Setpoint Bandwidth as Float
Command: 322, 0x142
Parameter: Setpoint number

12 520/920i EtherNet/IP Installation and Programming Manual
Command 322 returns the bandwidth value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a bandwidth value.
Read Setpoint Preact as Float
Command: 323, 0x143
Parameter: Setpoint number
Command 323 returns the preact value for the
specified setpoint in floating-point format. This
command is only valid if the setpoint is enabled and
requires a preact value.

Appendix 13
4.0 Appendix
4.1 Configuration Procedure for 920i and PLC
The following steps describe a typical procedure used to configure EtherNet/IP for a 920i controller and a PLC.
This example uses the CompactLogix L32E controller with RSLogix™5000 software, both from Rockwell
Automation®.1
1. Use iRev to configure the scales and scale capacities for the 920i.
2. Calibrate each scale and load any custom program required.
3. Power down the 920i. Install the EtherNet/IP option card (PN 87803). Write down the MAC address
shown on the back of the card.
4. Connect the EtherNet/IP option card to the network.
5. Use the MAC address on the back of the Anybus card to assign an IP address for the EtherNet/IP card.
The IP address can be assigned using the ARP function in DOS.
6. Use DOS to PING the EtherNet/IP card.
7. If the PING is successful, begin configuring the PLC.
8. Load RSLogix 5000 onto the same PC running iRev.
9. Load RSLinx and configure and DH+™driver.
10. Use the RS-232 connector to connect the PC to the PLC.
11. Configure the I/O Configuration outlined in the RSLogix manual (1769-UM011E-EN-P, available on the
Rockwell Automation website, www.rockwellautomation.com).
12. Use the Generic Ethernet Module to add the 920i with EtherNet/IP to the I/O configuration; assign a name.
13. Using RSLinx®, configure an Ethernet driver.
14. Attempt a connection to the PLC using RSLogix 5000. (See the manual, ENET-UM001D-EN-P,
available on the Rockwell Automation website, for instructions.)
15. Without a program loaded on the PLC, turn the key to run. Click on the RLWS EtherNet/IP module in
the I/O Config window. Another window will open that shows module properties.
16. Click on Module Info and verify that Anybus-S EtherNet/IP is shown as the Product Name. If so, the PLC
is communicating with the EtherNet/IP card.
17. Close the Module Info window, then open Controller Tags and verify the three tags assigned for this
module. For example, if the name assigned to the module was RLWS_EthernetIP, listed tags should include
RLWS_EthernetIP:I (input buffer), RLWS_EthernetIP:O (output buffer), and RLWS_EthernetIP:C (control buffer).
18. Data should begin filling the input buffer from the 920i. Initial data received will not make sense, but
data in Word 4 should change with change made in the weight applied to the scale.
19. Write the ladder or structured language code for the PLC. When data is acquired from the 920i, a SWPB
(swap bits) instruction is required to swap the upper and lower bytes for all four outbound words. Data
received must also use the SWPB instruction to swap inbound words. By using the SWPB instruction,
words can be MOVEd to a destination tag then treated as real values elsewhere in the PLC program. See
Figure 4-1 on page 14.
1. Rockwell Automation®, RSLogix™5000, RSLinx®, and DH+™are all trademarks of Rockwell Automation, Inc.

14 520/920i EtherNet/IP Installation and Programming Manual
Figure 4-1. Ladder Logic for Bit-swapping
<Local:1:I.Data.0>
0
1
2
(End)
Input_1
[] )(
B_Bit1
Control Bits
[]
B_Bit1
Control Bits
Swap Byte
Source RLWS_EthernetIP:I.Data(0)
8192
Order Mode HIGH/LOW
Dest DevNetIn1
32
SWPB
Swap Byte
Source RLWS_EthernetIP:I.Data(1)
3329
Order Mode HIGH/LOW
Dest DevNetIn2
269
SWPB
Swap Byte
Source RLWS_EthernetIP:I.Data(2)
0
Order Mode HIGH/LOW
Dest DevNetIn3
0
SWPB
Swap Byte
Source RLWS_EthernetIP:I.Data(3)
0
Order Mode HIGH/LOW
Dest DevNetIn4
0
SWPB
[]
B_Bit1
Control Bits
Swap Byte
Source DevNetCmd1
32
Order Mode HIGH/LOW
Dest RLWS_EthernetIP:O.Data(0)
8192
SWPB
SWPB
SWPB
SWPB
Swap Byte
Source DevNetCmd2
1
Order Mode HIGH/LOW
Dest RLWS_EthernetIP:O.Data(1)
256
Swap Byte
Source DevNetCmd3
0
Order Mode HIGH/LOW
Dest RLWS_EthernetIP:O.Data(2)
0
Swap Byte
Source DevNetCmd4
0
Order Mode HIGH/LOW
Dest RLWS_EthernetIP:O.Data(3)
0
Word 1 for the
Device Net Command
Word 2 of 4 for the
DevNet Command
Word 3 of 4 for the
DevNet Command
Word 4 of 4 for the
DevNet Command

Appendix 15
4.2 EDS File
The EDS file for the EtherNet/IP adapter, shown below, is included on the CD that comes with the option. The
EDS file must be installed in the host device to enable communication with the indicator.
[File]
DescText = "HMS AnyBus-Communicator EtherNet/IP";
CreateDate = 04-02-2003;
CreateTime = 14:40:00;
ModDate = 07-22-2003;
ModTime = 10:45:00;
Revision = 1.2;
[Device]
VendCode = 90;
VendName = "HMS Networks";
ProdType = 12;
ProdTypeStr = "Communication Adapter";
ProdCode = 1;
MajRev = 1;
MinRev = 17;
ProdName = "Anybus-C EtherNet/IP";
Catalog = "Anybus-C EtherNet/IP";
[Device Classification]
Class1 = EtherNetIP;
[Params]
Param1 =
0, $ first field shall equal 0
,, $ path size,path
0x0000, $ descriptor
0xC7, $ data type : 16-bit Unsigned Integer
2, $ data size in bytes
"Output Size", $ name
"", $ units
"", $ help string
0, 504, 16, $ min, max, default data values
0, 0, 0, 0, $ mult, dev, base, offset scaling not used
0, 0, 0, 0, $ mult, dev, base, offset link not used
0; $ decimal places not used
Param2 =
0, $ first field shall equal 0
,, $ path size,path
0x0000, $ descriptor
0xC7, $ data type : 16-bit Unsigned Integer
2, $ data size in bytes
"Input Size", $ name
"", $ units
"", $ help string
0, 504, 16, $ min, max, default data values
0, 0, 0, 0, $ mult, dev, base, offset scaling not used
0, 0, 0, 0, $ mult, dev, base, offset link not used
0; $ decimal places not used
[Connection Manager]
Connection1 =
0x04010002, $ trigger & transport
$ 0-15 = supported transport classes (class 1)
$ 16 = cyclic (1 = supported)

16 520/920i EtherNet/IP Installation and Programming Manual
$ 17 = change of state (0 = not supported)
$ 18 = on demand (0 = not supported)
$ 19-23 = reserved (must be zero)
$ 24-27 = exclusive owner
$ 28-30 = reserved (must be zero)
$ 31 = client 0 (don't care for classes 0 and 1)
0x44240405, $ point/multicast & priority & realtime format
$ 0 = O=>T fixed (1 = supported)
$ 1 = O=>T variable (0 = not supported)
$ 2 = T=>O fixed (1 = supported)
$ 3 = T=>O variable (0 = not supported)
$ 4-7 = reserved (must be zero)
$ 8-10 = O=>T header (4 byte run/idle)
$ 11 = reserved (must be zero)
$ 12-14 = T=>O header
$ 15 = reserved (must be zero)
$ 16-19 = O=>T point-to-point
$ 20-23 = T=>O multicast
$ 24-27 = O=>T scheduled
$ 28-31 = T=>O scheduled
,Param1,, $ O=>T RPI,Size,Format
,Param2,, $ T=>O RPI,Size,Format
,, $ config part 1 (dynamic assemblies)
,, $ config part 2 (module configuration)
"ABC-EIP IO Connection", $ connection name
"", $ Help string
"20 04 24 01 2C 96 2C 64"; $ exclusive output path
4.3 EtherNet/IP Interface Specifications
Power Requirements
Bus Adapter Card with EtherNet/IP Module, DC Power:
Supply voltage: 6 VDC, supplied by 520/920i bus
Typical current draw: 270 mA
Power consumption: 1.62 W
Indicators, Typical AC Load:
520 Power (TRMS): 3.51 W
Current (TRMS): 33.7 mA
920i Power (TRMS): 2.18 W
Current (TRMS): 28.9 mA
Communications Specifications
EtherNet/IP Network Communications:
Twisted-pair cabling at 10 or 100Mbps
Environmental Specifications
Temperature: –10° to +40° C (14° to 104° F)
Conformance
The Anybus-S EtherNet/IP Interface has been tested by
ODVA’s independent test lab and found to comply with the
ODVA composite conformance test, revision 3.
The EtherNet/IP Interface has been found in accordance with
EMC directive 89/336/EEC for European standards EN
50081-2 and EN 61000-6-2.