1. Gardner Denver Auto Sentry ES/RS2000 Description
The Gardner Denver Auto Sentry ES/RS2000 driver allows the FieldServer to transfer
data from devices over either RS-232 or RS-485 using Gardner Denver Auto Sentry
ES/RS2000 protocol. The driver can be configured to communicate with ES Controllers
with software versions V2.0X, V2.1X and RS2000 Controllers with software versions
V4.0X
The client driver implements the following functionality:
• Polls controllers for service and maintenance data.
• Polls controllers for operating mode data.
• Polls controllers for operating data.
The driver can poll up to 8 units connected to one ES/RS2000 Controller. It always sets
the active unit on the ES/RS2000 Controller before polling for data even if consecutive
polls are for the same unit. This is done to prevent synchronization problems.
Gardner Denver ES/RS2000 Controllers implements three message types for which the
driver can poll. The driver does not validate the message data fields for correct values
although it does validate data field lengths For example, shutdown codes reported by
V2.1 ES Controllers range from 0 to 27. If a code of 28 is reported, the driver will not
flag it as an error since codes have to be interpreted by the operator. However, a
message length longer than 2 digits will be reported as an error.
Max Nodes Supported
FieldServer Mode Nodes Comments
Client 1
A client node can communicate with up to 8 units
connected to a ES/RS2000 Controller
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
1.01 Supplied by FieldServer Technologies for this driver
FieldServer Technologies
PART #
Description
FS-8915-10 UTP cable (7 foot) for RS-232 use
FS-8917-03 RJ45 to DB9M connector adapter
FS-8700-60 Driver Manual
1.02 Provided by the Supplier of 3rd Party Equipment
2.1.1. Required 3rd Party Hardware
Part # Description
- ES/RS2000 controller
2.1.2. Required 3rd Party Software
None.
2.1.3. Required 3rd Party Configuration
The ES/RS2000 Controller must be set up in the correct mode to support either
RS-232 or RS-485 communications to an external monitoring system. Please
refer to manufacturer’s setup instructions.
2.1.4. Optional Items
PART # Vendor/Manufacturer Description
485LDRC B&B Electronics RS-232/RS-485 converter
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
The FieldServer is connected to the ES/RS2000 Controller as shown in the
connection drawing below:
Configure the ES/RS2000 Controller according to manufacturer’s instructions.
1.03 Hardware Connection Tips / Hints
If inter-controller communications are set up for the controller, connect to the RS-232
port only. If inter-controller communications are not used, connect to either the RS232 or RS-485 port of the Controller.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
4. Configuring the FieldServer as a Gardner Denver Auto Sentry ES/RS2000
Client
For a detailed discussion on FieldServer configuration, please refer to the
FieldServer Configuration Manual. The information that follows describes how to
expand upon the factory defaults provided in the configuration files included with the
FieldServer (See “.csv” sample files provided with the FieldServer). This section
documents and describes the parameters necessary for configuring the FieldServer
to communicate with a Gardner Denver Auto Sentry ES/RS2000 Controller.
1.04 Data Arrays/Descriptors
The configuration file tells the FieldServer about its interfaces, and the routing of data
required. In order to enable the FieldServer for Gardner Denver Auto Sentry
ES/RS2000 communications, the driver independent FieldServer buffers need to be
declared in the “Data Arrays” section, the destination device addresses need to be
declared in the “Client Side Nodes” section, and the data required from the servers
needs to be mapped in the “Client Side Map Descriptors” section. Details on how to
do this can be found below.
Note that in the tables, * indicates an optional parameter, with the bold legal value
being the default.
Section Title
Data_Arrays
Column Title Function Legal Values
Data_Array_Name Provide name for Data Array
Provide data format. Each Data
Data_Array_Format
Array can only take on one
format.
Up to 15 alphanumeric
characters
Float, UInt16, Uint32,
Byte, Packed_Byte,
Swapped_Byte
Number of Data Objects. Must
be larger than the data storage
Data_Array_Length
area required by the Map
1-10,000
Descriptors for the data being
placed in this array.
One of the node names specified
in “Client Node Descriptor” above
Service_Data, Operating_Mode,
Operating_Data
Available with Service_Data: All,
Advisories, Shutdown_codes,
Hourmeter_shutdown,
Hourmeter_total,
Hourmeter_loaded,
Hourmeter_temp,
Hourmeter_tmp_st, Last_maint_A,
Last_maint_B, Oilage
Available with Operating_Mode:
All, Oper_mode, Seq_number,
Oper_state
Gar_data
Data fields in a data poll
command response
message. Can be used to
poll for all or specific data
or just isolate specific items
in a “All” poll.
Available with Operating_Data: All,
System_pressure, Filter_pressure,
Discharge_temp, Reservoir_temp,
Motor_current
4.1.3. Timing Parameters
Column Title Function
Legal
Values
Rate at which data is polled. Note that the
Scan_Interval
Poll_Delay Connection parameter affects the
≥0.1s
effective scan interval.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
Note the active Read Block Continuous map descriptor
function responsible for polling the Controller.
The Gar_cmd field indicates the poll
is for Operating Data.
The Gar_data field is set to “All”
indicating that all available data is
polled for.
Data will be stored as follows:
Offset Description Units
DA_Service_Data
0 Advisories see ES/RS2000 Controller spec
1-20 10x (Shutdown code / Hourmeter reading) pairs see ES/RS2000 Controller spec
21 Current total runtime hourmeter reading Hours
22 Current loaded runtime hourmeter reading Hours
23-28 6x Current temp hourmeters [H1] – [H6] Hours
29-34 6x Stored temp hourmeters [OH1] – [OH6] Hours
35 Last maintenance A Hours
36 Last maintenance B Hours
37 Oilage Unknown, see ES/RS2000 controller spec
Operating mode data
0 Operating mode indication see ES/RS2000 Controller spec
1 Sequence number2 see ES/RS2000 Controller spec
2 Unit operating state3 see ES/RS2000 Controller spec
Operating data
0 System pressure divide by 16 for pressure in psig
1 Filter pressure divide by 16 for pressure in psig
2 Discharge temperature divide by 16 for temperature in degrees F
3 Reservoir temperature divide by 16 for temperature in degrees F
2
ES V2.0X Controllers do not respond with this field
3
ES V2.0X Controllers do not respond with this field
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
Note the use of the passive map descriptor function. This map descriptor
does not poll but receives data from the active map descriptor since the
Gar_cmd and Node_Name fields match.
Note, the Gar_cmd
indicates polling for
Operating data.
Note that a specific data item,
“Discharge_temp” is isolated here by
still using the same Gar_cmd as the
active map descriptor.
4
RS2000 V4.0X Controllers set this field to zero
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com
Appendix 1.1. Can I use only Passive Client mapdescs ?
No. A passive client map descriptor must be used after an active RDBC map
descriptor. The driver uses the active map descriptors to poll the Controller and then
searches for Passive Client map descriptors with matching Node_Name and
Gar_Cmd fields. It then stores the data items as specified by the Gar_data field from
the data collected by the preceding active map descriptor.
Appendix 1.2. Data length of specific polls versus “All” data polls
The length of the data packet retrieved from the Controller during a poll is always
fixed for each of the three types of data polls. When specifying a specific Gar_data
item on a RDBC active map descriptor, the driver still gets all data of Gar_cmd type
from the controller in a single poll, but only stores the data item in question.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com