Emerson Bettis RTS User manual

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
July 2021
Bettis RTS
Connectivity with Modbus TCP

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
Notes
July 2021
This page intentionally left blank

i
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
Table of Contents
July 2021
Table of Contents
Section 1: General
General ................................................................................................................... 1
Section 2: Topology
Topology................................................................................................................. 2
Section 3: Connection
Connection............................................................................................................. 3
Section 4: Settings
Settings .................................................................................................................. 4
Section 5: Description of Input and Output Data
5.1 Register Assignment for the Input Data (Data from Master to Slave).............. 5
5.1.1 Set Point............................................................................................. 5
5.1.2 Command .......................................................................................... 6
5.1.3 Command 2 ....................................................................................... 7
5.2 Modules for the Output Data (Slave to Master).............................................. 8
5.2.1 Actual Value ....................................................................................... 8
5.2.2 Status................................................................................................. 9
5.2.3 Actual Torque..................................................................................... 9
5.2.4 Actual Speed .................................................................................... 10
5.2.5 Ext. Actual Value .............................................................................. 10
5.2.6 Status 2 ............................................................................................ 10
5.2.7 Status 3 ............................................................................................ 11
5.2.8 Status 4 ............................................................................................ 11
Table of Contents

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
Notes
July 2021
This page intentionally left blank

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
1
Section 1: General
Section 1: General
A eldbus interface for the Modbus TCP bus system is available for Emerson actuators
in the Bettis RTS Series of Electric Actuators. Modbus TCP is an Ethernet-based eldbus
system. This interface is a hardware option and should already be known when ordering
the actuator.
General

July 2021
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
2
Section 2: Topology
Section 2: Topology
Since two ports are executed on the additional board for the Modbus TCP, the following
network topologies can be implemented:
• Line structure
• Tree structure
• Star structure
• Ring structure (if supported by the master)
• Mixed forms
Example:
Figure 1 Topology
Topology
Hub
Hub
Hub
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device
Field
Device

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
3
Section 3: Connection
The connection of the RTS Control Unit to the Modbus TCP is done at the eld level
because of the high degree of protection required via 4-pin, D-coded, M12 connectors
(see IEC 61076-2-101). The female side is on the device, and the male side on the cable side.
Two equivalent M12 connectors, which are internally wired to a hub, are located on the
RTS Control Unit with Modbus TCP. With this, a line structure can be implemented. Which
connection is used is irrelevant for the function.
Figure 2 Pin assignment on device side (female side)
Table 1.
The devices are connected via crossover cables, i.e.:
• Tx+ to Rx+
• Tx- to Rx-
• Rx+ to Tx+
• Rx- to Tx-
The cable types recommended are standard patch cables (twisted pair, S/UTP, AWG26,
Cat5e). The cable shield has to be connected to the actuator housing over the connector
housing. It is important to ensure that there are no potential differences between the
individual devices in the Modbus TCP network so that no transient currents ow over the
cable shield.
Section 3: Connection
Pin Function
1 Tx+
2 Rx+
3Tx-
4Rx-
Connection

July 2021
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
4
Section 4: Settings
Section 4: Settings
The following additional parameters become visible in the control unit for the Bettis RTS
electric actuator with the Modbus TCP option enabled.
Table 2.
Menu
item
Sub-menu
item Poss. setting Notes/comments
P15.1 Bus Modbus TCP
0: inactive Modbus TCP disabled.
1: xed IP The actuator has a xed IP address (parameters P15.2 and
P15.3 have to be parametrised correctly).
2: DHCP The actuator receives its IP address from the DHCP server.
3: BOOTP The actuator receives its IP address from the BOOTP server.
P15.2 Bus IP Address 0 to 125 Valid IP address (only relevant if P15.1 is set to 1 (xed IP))
P15.3 Bus Net Mask 0 to 125 Valid net mask (only relevant if P15.1 is set to 1 (xed IP)).
P15.4 Bus Swap Bytes 0, 1 Swap the low and high bytes in registers.
P15.6 Bus Watchdog
time
0.0 – 10.0 s
(0.0 s)
Monitoring of the toggle bit transmitted from the master
(bit 7 in the command). With a bus watchdog time set, this
bit has to toggle within that time; otherwise there is a bus
watchdog fault. At 0.0 s the watchdog function is disabled,
in which case toggling of the toggle bit may be omitted.
P15.7 Bus Sollwertquelle
(0): Standard The set point is specied via the Modbus TCP
(only relevant when the positioner is enabled).
1: Analog The set point is specied by the analog signal
(only relevant when the positioner is enabled).
2: Bus/analog
With an error-free bus, the set point is specied via the
Modbus TCP. With a bus error, the analog value is switched
to (only relevant when the positioner is enabled).
P15.8 Bus Status 2 (0) Standard assignment for Status 2.
1 - 2 Reserved for future use.
P15.9 Bus Status 3 (0) Standard assignment for Status 3 (current event).
1 - 2 Reserved for future use.
P15.10 Bus Status 4 (0) Standard assignment for Status 4 (current event).
1 - 2 Reserved for future use.
! WARNING
After changing parameters P15.1 - P15.3, the protocol stack for the Modbus TCP is
restarted to apply the change.
! WARNING
To allow the actuator to be unambiguously identied in the network, the MAC address is
displayed in the bottommost line of Status Area S5!
Settings

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
5
Section 5: Input and Output Data
Section 5: Description of Input and
Output Data
General information: Depending on the master, it is possible that the low byte (bits 0 - 7)
and the high byte (bits 8 - 15) have to be swapped in the registry values. This swapping can
be done by the control unit with parameter P15.4.
The transmission mode (big endian/little endian) always has to be adjusted such that the
analog values are transmitted correctly. Only then can the binary data be swapped.
5.1 Register Assignment for the Input Data
(Data from Master to Slave)
The register values can be written with functions 6 (06Hex: Write single register):
and 16 (10Hex: Write multiple registers).
The register values can be read back with function 3 (03Hex: Read holding register).
! WARNING
Depending on the master, the register numbers are assigned with an offset! For example,
register 0 in the master has the address 1Dec or 40001Dec!
5.1.1 Set Point
Registry number: 0Hex
Data format: 16-bit, the lower 10 bits (0 - 1023) are used.
The other bits are reserved for future use and must be set to zero!
Structure:
Table 3.
Value Function Description
0 (0Hex) 0%
512 (200Hex) 50%
1023 (3ffHex) 100%
Input and Output Data

July 2021
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
6
Section 5: Input and Output Data
5.1.2 Command
Registry number: 1Hex
Data format: 16-bit (bit eld)
Structure:
Table 4.
Bit
no. Function Description
Bit= 0 Bit=1
0OPEN - OPEN command in REMOTE mode
1 CLOSE - CLOSE command in REMOTE mode
2STOP - STOP command in REMOTE mode
3NOT-AUF - EMERGENCY OPEN command in LOCAL and REMOTE modes
4NOT-ZU - EMERGENCY CLOSE command in LOCAL and REMOTE modes
5 BLOCK -
BLOCK drive in LOCAL and REMOTE modes. The drive is not
operable either via the selector switch locally nor via commands
by REMOTE nor Modbus TCP
6CONTROL
INHIBIT -CONTROL INHIBIT in REMOTE mode engagement of the positioner is suppressed
7 WATCHDOG
Toggle bit from the master for bus watchdog monitoring
With bus watchdog time set, the bit has to toggle within this time;
otherwise there is a bus error
8 OPEN-SH - OPEN command with self-retention in REMOTE mode jettison
with STOP
9 CLOSE-SH - CLOSE command with self-retention in REMOTE mode jettison
with STOP
10 LOCKING- OPEN -
Trigger locking OPEN (in LOCAL and REMOTE modes) the drive
runs OPEN with highest priority, the command continues to
queue internally even after reaching the OPEN end position.
Jettison only with LOCKING OFF, supply off or OFF mode
11 LOCKING- CLOSE -
Trigger locking CLOSED (in LOCAL and REMOTE modes)
the drive runs CLOSED with highest priority, the command
continues to queue internally even after reaching the CLOSED
end position. Jettison only with LOCKING OFF, supply off or
OFF mode
12 LOCKING OFF - Jettison locking
13 BLOCK LOCAL - BLOCK drive in LOCAL mode
The drive is not operable via the selector switch locally
14 FAIL-SAFE - Trigger the fail-safe unit (if there is one)
15 OVERRIDE - Binary inputs are not processed
Input and Output Data

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
7
5.1.3 Command 2
Register number: 2Hex
Data format: 16-bit (bit eld)
Structure:
Table 5.
Table 6. Bit-setting for intermediate position (Bit8)
Section 5: Input and Output Data
Bit
no. Function Description
Bit= 0 Bit=1
0 Bus Bit 1 -
These binary outputs can be assigned to the bus.
The assignement can be done arbitrarily, including the
assignement of a single bit to mulitple outputs.
(Available with Firmware 1.323)
1 Bus Bit 2 -
2 Bus Bit 3 -
3 Bus Bit 4 -
4 Bus Bit 5 -
5 Bus Bit 6 -
6 Bus Bit 7 -
7 Bus Bit 8
8 Intermediate Position - Intermediate position, dened by Bit9, Bit10 and Bit11
9Denition intermediate
Position - Bit-setting for intermediate position see Table 6
10 Denition intermediate
Position - Bit-setting for intermediate position see Table 6
11 Denition intermediate
Position - Bit-setting for intermediate position see Table 6
12 PVST-Start - Start PVST
13 Reserved -
14 Reserved -
15 Reserved -
Bit11 Bit10 Bit9 Function
0 0 0 move to intermediate position: Position 1
0 0 1 move to intermediate position: Position 2
0 1 0 move to intermediate position: Position 3
0 1 1 move to intermediate position: Position 4
1 0 0 move to intermediate position: Position 5
1 0 1 move to intermediate position: Position 6
1 1 0 move to intermediate position: Position 7
1 1 1 move to intermediate position: Position 8
Input and Output Data

July 2021
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
8
Section 5: Input and Output Data
5.2 Modules for the Output Data (Slave to Master)
The register values can be read with function 4 (04Hex : Read input register).
! WARNING
Depending on the master, the register numbers are assigned with an offset! For example,
register 0 in the master has the address 1Dec or 40001Dec!
5.2.1 Actual Value
Registry number: 0Hex
Data format: 16-bit, the lower 10 bits (0 - 1023) are used.
The other bits are reserved for future use and have to be hidden!
Structure:
Table 7.
Value Function Description
0 (0Hex) 0%
512 (200Hex) 50%
1023 (3ffHex) 100%
Input and Output Data

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
9
Section 5: Input and Output Data
5.2.2 Status
Registry number: 1Hex
Data format:16-bit (bit eld)
Structure:
Table 8.
Bit
no. Function Description
Bit= 0 Bit=1
0 READY - Actuator is ready
1 END POSITION OPEN - End position OPEN reached (taking into account the type of
de-activation (torque- or travel-dependent))
2END POSITION
CLOSED -End position CLOSED reached (taking into account the type of de-activation (torque- or travel-dependent))
3 TRAVEL OPEN - Travel end position OPEN reached (no allowance for the type of
de-activation (only straightforward travel information))
4 TRAVEL CLOSED - Travel end position CLOSED reached (no allowance for the type of
de-activation (only straightforward travel information))
5 TORQUE OPEN - Cut-out torque in OPEN direction has been exceeded
6 TORQUE CLOSED - Cut-out torque in CLOSE direction has been exceeded
7 MOTOR TEMP. - Motor temperature sensor has responded (overtemp.)
8 OPERATION OPEN - The drive is operating by motor OPEN
9 OPERATION CLOSED - The drive is operating by motor CLOSED
10 LOCAL - Selector switch in position LOCAL
11 REMOTE - Selector switch in position REMOTE
12 LOCKING-OPEN -
Locking OPEN is active. OPEN command is queued with the
highest priority and will not be jettisoned even in the end position
(see command for bits 10 and 12)
13 LOCKING-CLOSED -
Locking CLOSED is active. CLOSE command is queued with the
highest priority and will not be jettisoned even in the end position
(see command for bits 11 and 12)
14 LIVEBIT 1 - Livebit1 toggles every second
15 LIVEBIT 2 - Livebit 2 is the copy from the watchdog toggle bit
(see command bit 7)
5.2.3 Actual Torque
Register number: 2Hex
Data format: 16-bit, only the lower 8 bits (Bit 7: in direction OPEN; bit 6 - 0: 0 - 100
corresponding to 0 - 100%) are used.
The other bits are reserved for future use and must be hidden.
Input and Output Data

July 2021
Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0
10
Section 5: Input and Output Data
Input and Output Data
5.2.4 Actual Speed
Registry number: 3Hex
Data format: 16-bit, only the lower 8 bits (Bit 7: in direction OPEN; bit 6 - 0: 0 - 100
corresponding to 0 - 100%) are used.
The other bits are reserved for future use and must be hidden.
5.2.5 Extended Actual Value
(only with PID controller option)
Registry number: 4Hex
Data format: 16-bit, the lower 10 bits (0 - 1023) are used.
The other bits are reserved for future use and must be hidden.
5.2.6 Status 2
Registration number: 5Hex
Data format: 16-bit (bit eld)
Structure:
Table 9.
Parameter P15.8 can be used to set alternative output functions for Status 2.
Bit no. Function Description
Bit= 0 Bit=1
0 Dig. output 1 -
Corresponding binary output is set.
1 Dig. output 2 -
2 Dig. output 3 -
3 Dig. output 4 -
4 Dig. output 5 -
5 Dig. output 6 -
6 Dig. output 7 -
7 Dig. output 8 -
8 Dig. input 1 -
Corresponding binary output is set.
9 Dig. input 2 -
10 Dig. input 3 -
11 Dig. input 4 -
12 Dig. input 5 -
13 PHASE SEQUENCE - Phase sequence error: Error in supply voltage the
(incorrect phase sequence, phase loss, total loss, asymmetry)
14 FC ERROR - FC error: error in the power supply unit and/or the frequency
converter (if there is one)
15 FAIL-SAFE ERROR - Fail-safe unit not ready (if there is one)

Installation, Operation and Maintenance Manual
VCIOM-15517-EN Rev. 0 July 2021
11
Section 5: Input and Output Data
Input and Output Data
5.2.7 Status 3
Record Number: 6Hex
Data format: 16-bit, error number
Table 10.
Parameter P15.9 can be used to set alternative output functions for Status 3.
5.2.8 Status 4
Record Number: 7Hex
Data format: 16-bit, error number
Structure:
Table 11.
Parameter P15.10 can be used to set alternative output functions for Status 4.
Error number Meaning
3 Motor temperature warning
4 Motor temperature cut-out
5 Phase sequence error or phase loss
9 Error in the power supply or the frequency converter
11 Error in the fail-safe unit (provided there is one)
17 Fault position sensor
22 Fault torque sensor (provided there is one)
Bit no. Function Description
Bit1 Bit0 Signal
0 and 1 Channel Activity
0 0 Bus: Channel A active.
0 1 Bus: Channel B active.
1 0 Bus: Channel A and B active, main channel for inputs is channel A.
1 1 Bus: Channel A and B active, main channel for inputs is channel B.
2Reserved
3Reserved
4Reserved
5Reserved
6Reserved
7Reserved
8 and 9 PVST Status
0 0 PVST functionality not activated or no PVST realised yet.
0 1 PVST active: There is a PVST active currently.
1 0 PVST OK: The last PVST was successful.
1 1 PVST Error: The last PVST was not successful.
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved

World Area Conguration Centers (WACC) offer sales support, service,
inventory and commissioning to our global customers.
Choose the WACC or sales ofce nearest you:
www.emerson.com/bettis
VCIOM-15517-EN ©2021 Emerson. All rights reserved.
The Emerson logo is a trademark and service mark of Emerson Electric Co.
BettisTM is a mark of one of the Emerson family of companies.
All other marks are property of their respective owners.
The contents of this publication are presented for informational purposes
only, and while every effort has been made to ensure their accuracy,
they are not to be construed as warranties or guarantees, express or
implied, regarding the products or services described herein or their use
or applicability. All sales are governed by our terms and conditions, which
are available upon request. We reserve the right to modify or improve the
designs or specifications of such products at any time without notice.
For complete list of sales and manufacturing sites, please visit
www.emerson.com/actuationtechnologieslocations or contact us at
[e-mail]
NORTH & SOUTH AMERICA
19200 Northwest Freeway
Houston TX 77065
USA
T [phone]
Av. Hollingsworth
325 Iporanga Sorocaba
SP 18087-105
Brazil
T [phone]
ASIA PACIFIC
No. 9 Gul Road
#01-02 Singapore 629361
T [phone]
No. 1 Lai Yuan Road
Wuqing Development Area
Tianjin 301700
P. R. China
T [phone]
MIDDLE EAST & AFRICA
P. O. Box 17033
Jebel Ali Free Zone
Dubai
T [phone]
P. O. Box 10305
Jubail 31961
Saudi Arabia
T [phone]
24 Angus Crescent
Longmeadow Business Estate East
P.O. Box 6908 Greenstone
1616 Modderfontein Extension 5
South Africa
T [phone]
EUROPE
Holland Fasor 6
Székesfehérvár 8000
Hungary
T [phone]
Strada Biffi 165
29017 Fiorenzuola d’Arda (PC)
Italy
T [phone]