Honeywell Excel 5000 open XFL521B Operation manual

® U.S. Registered Trademark
Copyright © 2000 Honeywell Inc. • All Rights Reserved EN0B-0090GE51 R1200
Distributed I/O
XFL521B, 522B,
523B, AND 524B MODULES
PRODUCT DATA
FEATURES
•LONMARK™ compliant
•2-wire LONWORKS®bus interface between controller
and I/O
•No additional field terminals required
•May be used with Excel 500 controllers in conjunction
with standard I/O modules
•Automatic binding and commissioning with Excel 500
•Connector module with sliding bus connector (thus
eliminating the need to wire together neighboring
modules)
•Fast connection due to spring clamp terminals
•Module exchange during operation
•Optional manual override with feedback
•Alarm in case of defective module
•Mechanical coding prevents mismatching of modules
•Power LED (L1, green) and LONWORKS service LED
(L2, red) on all electronics modules.
•Status LEDs for analog outputs and digital in- and
outputs
•Optional manual override modules for analog and
digital output modules
GENERAL
The XFL521B, 522B, 523B, and 524B modules are LONMARK
compliant digital and analog I/O modules which can be
installed at strategic locations within a building. These
modules convert sensor readings and provide output signals
used for operating actuators via LONWORKS standard network
variables (SNVTs). Each Distributed I/O module plugs into a
base terminal block allowing communication with controllers
via the built-in Echelon®LONWORKS bus interface. The ter-
minal block provides spring clamp terminals for easy connec-
tion of field cables from the various sensors and actuators.
The modular system allows Distributed I/O modules to be
removed from the system without disturbing other modules.
The module with terminal block mounts easily onto a DIN-rail.
The Excel 500 CPU (XC5010C, XC5210C, XCL5010) is
capable of automatically binding and commissioning the Dis-
tributed I/O modules via the LONWORKS bus. When the
modules are used by other controllers, plug-ins are provided
so that the modules can be commissioned by any LNS or
non-LNS installation or network management tool.
DESCRIPTION
The XFL521B, 522B, 523B, and 524B are Distributed I/O
modules that use a Neuron® chip and an FTT-10A free
topology transceiver for communication on a LONWORKS bus.
The modules are compliant with LONMARK Application Layer
Guidelines V3.2.
Table 1. Modules and accessories.
Module Description
XFL521B Analog Input module
XFL522B Analog Output module
XFL523B Digital Input module
XFL524B Digital Output module
XSL511 LONWORKS connector module
XSL512 Manual terminal disconnect module
XSL513 Terminal block for XFL521/522/523
XSL514 Terminal block for XFL524
XFR522A Analog Output manual override module
XFR524A Digital Output manual override module

DISTRIBUTED I/O
EN0B-0090 2
INTEROPERABILITY
The Distributed I/O modules are compliant to the LONMARK
Application Layer Interface Guidelines, version 3.2. The
modules contain a LONMARK Node Object to allow monitoring
and setting the status of the various Sensor / Actuator Ob-
jects, as well as a LONMARK Sensor Object for each input or
an Actuator Object for each individual output.
Upon receiving an update to the NViRequest network vari-
able, the NVoStatus network variable is updated. The defini-
tion of SNVT_obj_request includes an object ID field to allow
the Node Object to report status conditions for all objects on
a node.
All network variables have the NV names in their self-docu-
mentation strings. This allows a network management node
or tool to display meaningful information on a Distributed I/O
module even if it is installed by an EXCEL 5000 controller
and not by the tool itself.
The Distributed I/O modules use the standard 6-byte location
string (see Table 2) in the Neuron® chip’s EEPROM to store
the module address (0...15 as set using the rotary HEX
switch) and the module type.
Location String
‘0’ Y Y
Module type
Set to '0'
Module
address
Module Type:
0 = XFL521B Analog Input
1 = XFL522B Analog Output
2 = XFL523B Digital Input
3 = XFL524B Digital Output
Table 2. Location string for storing module address
The node self-documentation string contains the module type
and revision in the optional part after the semicolon.
Example:
#pragma set_node_sd_string &3.2@0,3[6;XDO2_2_00
In this example, the module type is "XDO2" ("2" means that
the 3120E5 chip is used) and the revision is "2.00".
LONMARK Node Object
Setting the Node Object to “DISABLE” via nviRequest
suppresses updating of all output NVs and handling of input
NVs. Setting the Node Object to “ENABLE” via nviRequest
returns the module to normal operation.
The Node Object also contains the optional NV nciNetConfig
which is initialized to “CFG_LOCAL” by default. This allows
the Distributed I/O module to set its location string. If a
network management node commands this nci to
“CFG_EXTERNAL”, then the module will no longer modify its
Location String. This nci is stored in EEPROM and remains
there even in the event of a power failure.
LONMARK Sensor/Actuator Objects
All Actuator Objects (contained in the output modules) have
an output NV showing the actual state of the physical output
and whether it is in the automatic or manual override mode.
Note that the output modules have a manual override panel
which can be plugged on or off.
All Sensor Objects (contained in the input modules) have a
configuration property, MaxSendTime, defining the heartbeat
time, i.e. the interval in which output NVs belonging to the
physical inputs will be sent even if their values do not
change.
All Sensor Objects also have a configuration property,
MinSendTime, defining the minimum time which must elapse
before a changed value of an output NV belonging to a
physical input will be sent. This is to limit the network traffic
when sensor values change rapidly.
Node Object
Type #0
Mandatory
Network
Variables
input
NV 1 nviRequest
SNVT_obj_request
nv1 nviRequest
SNVT_obj_request
input
NV 1 nviRequest
SNVT_obj_request
nv2 nvoStatus
SNVT_obj_status
input
NV 1 nviRequest
SNVT_obj_request
nv8 nvoFileDirectory
SNVT_address
Optional
Network
Variables
Optional
Configuration
Properties
input
NV 1 nviRequest
SNVT_obj_request
nc25 nciNetConfig
SNVT_config_src
input
NV 1 nviRequest
SNVT_obj_request
nc49 SCPTMaxSendTime
SNVT_time_sec
input
NV 1 nviRequest
SNVT_obj_request
nc52 SCPTMinSendTime
SNVT_time_sec
Figure 1. Distributed I/O LONMARK Node Object profile.

DISTRIBUTED I/O
3 EN0B-0090
Table 3. Node Object network variables.
NV Name Type Range Description
nviRequest SNVT_obj_request RQ_NORMAL
RQ_DISABLE
RQ_ENABLE
RQ_UPDATE_STATUS
RQ_REPOPRT_MASK
RQ_SELF_TEST
Upon receiving an update to nviRequest, nvoStatus is
updated.
RQ_SELF_TEST is used only in the XFL522 analog
output module for outputs configured as a motor. In
this case, a synchronization is performed to set the
actuator in the 0% position.
nvoStatus SNVT_obj_status Reports the status of the node upon request through
nviRequest.
nciNetConfig SNVT_config_src CFG_LOCAL (default)
CFG_EXTERNAL This configuration variable is set to CFG_LOCAL at the factory and whenever the rotary HEX switch is
reset. If it is set to CFG_EXTERNAL, a network
manager will assign a network address for the node. In
this case, the module will not modify its location string
as long as the rotary HEX switch is not reset.
nvoFileDirectory SNVT_address Points to a file directory in the address space of the
Neuron® chip containing descriptors for the files in the
module. It is used to access the configuration pro-
perties stored in configuration parameter files
accessed by network management read/write
messages.
SCPTminSendTime SNVT_time_sec 1.0 to 10.0s
(default = 1.0) Defines the minimum period of time between output variable transitions. This configuration property is
applicable only to output NVs of the input modules.
SCPTmaxSendTime SNVT_time_sec 1.0 to 6553.4s
(default = 60.0s) Defines the maximum time period of time before out- put NVs are automatically updated. It must be set to a
higher number than SCPTminSendTime. This con-
figuration property is applicable only to output NVs of
the input modules.
XFL52xB Module Response Times
The response time of Distributed I/O modules is defined as
the period of time between the updating of the physical signal
and the updating of the NV (or vice versa). The response
time varies somewhat due to certain factors and is also
dependent upon the module type (refer also to Table 4).
The total system response time represents the sum of the
response times of all involved devices. When operating in the
open mode, a fast response time of 40 ms can be achieved,
thus enabling them to be employed in time-critical
applications.
Table 4. Response time (RT)
Module Typical RT
(sec) Max. RT (sec) Min. time between 2 updates
XFL521B 0.8 1.6 SNVTMinSendTime
(default: 1 sec)
XFL522B 0.2 0.4 n.a.
XFL523B 0.3 0.5 SNVTMinSendTime
(default: 1 sec)
XFL524B 0.2 0.4

DISTRIBUTED I/O
EN0B-0090 4
TECHNICAL DATA
Analog Input Module XFL521B •Eight inputs (AI1 – AI8)
0 to 10 Vdc (see EN1R-1047 for impedance
information)
0 to 20 mA (via external 500-ohm resistor)
4 to 20 mA (via external 500-ohm resistor)
NTC 20K ohm (-50°C to +150°)
PT1000 (-50°C to +150°C)
•Protected inputs up to 40 Vdc / 24 Vac
•12-bit resolution
•± 75 mV accuracy (0 to 10 V)
•10 Vdc auxiliary voltage supply (9 – 17) , Imax = 5 mA
•1 sec polling time with CPU
•Green power LED (L1) and red LONWORKS status LED
(L2)
•Dimensions (WxLxH): 47x97x70 mm
The analog input module has eight input channels which
can be used for connecting sensors or any device pro-
viding an analog output. The input values are read by the
CPU and can then be used for monitoring or as para-
meters for controlling other devices.
The unit plugs into the XSL513 Terminal Block and can be
inserted and removed without disturbing other units on the
bus. Terminals AI1 through AI8 are the analog inputs and
terminals 9 through 17 are wired together and provide an
auxiliary voltage of 10 Vdc. The module address is set
using the rotary HEX switch.
NOTE: When the input is identified as a DI point, the
internal pull-up resistor is disabled.
Open Loop Sensor
Object Type #1
Mandatory
Network
Variables
input
NV 1 nviRequest
SNVT_obj_request
nv1 nvoAiValue
SNVT_volt_f
input
NV 1 nviRequest
SNVT_obj_request
nv1 nvoAiTemp
SNVT_temp_p
Optional
Network
Variables
Optional
Configuration
Properties
input
NV 1 nviRequest
SNVT_obj_request
nc1 UCPTSensorConfig
input
NV 1 nviRequest
SNVT_obj_request
nc2 UCPTSendOnDelta
input
NV 1 nviRequest
SNVT_obj_request
nc3 UCPTWireOffset
Figure 2. LONMARK Object for each analog input.
For each Sensor Object, the XFL521 Analog Input Module
provides an additional output NV, SNVT_temp_p, which
communicates the temperature in °C. This allows this
module to be used as a true temperature sensor in an
open LONMARK integration. If the Sensor Object is con-
figured as 0 to 10V, this NV will be invalid (0x7FFF).

DISTRIBUTED I/O
5 EN0B-0090
Table 5. LONMARK Object NVs for the XFL521B.
NV Name Type Range Description
nvoAiValue SNVT_volt_f 0x000 (0.00 mV) to
0x461C4000 (10V) The value of the input channel connected to a 0 to 10V signal after it has been filtered. Voltage
is transmitted in mV. When configured for a
temperature sensor, the channel transmits the
measured resistance.
nvoAiTemp SNVT_temp_p 0xEC78 (-50°C) to
0x3A98 (150°C)
Invalid = 0x7FFF
The value of the input connected to either an
NTC20 or PT1000 sensor with a resolution of
0.1°C. If the sensor channel is configured as a
voltage input, the temperature value is invalid
(0x7FFF).
UCPTSensorConfig 0 = not used,
9 = 0 to 10V with pull-up resistor
4 = NTC20
5 = PT1000
10 = 0 to 10V without pull-up
resistor (default = 8)
Specifies the type of sensor for a particular
input channel.
UPCTSendOnDelta SNVT_count 0 to 4095 (default = 2) Specifies the difference in the raw value
measured by the A/D converter is required
before the value of the sensor is transmitted.
UCPTWireOffset SNVT_res 0 to 6553.5 ohm (default = 0) Specifies a resistance value to add to the
resistance measured for a temperature sensor.

DISTRIBUTED I/O
EN0B-0090 6
Analog Output Module XFL522B •Eight outputs (AO1 – AO8), short-circuit proof
•Signal levels 0 to 10 Vdc
Umax = 11 Vdc, Imax = +1 mA, -1 mA
•Protected outputs up to 40 Vdc / 24 Vac
•8-bit resolution
•Zero point < 200 mV
•Accuracy ± 150 mV deviation from output voltage
•One red LED per channel (light intensity proportional to
output voltage)
•Green power LED (L1) and red LONWORKS status LED
(L2)
•Control updating every 1 sec with CPU
•Dimensions (WxLxH): 47x97x70 mm
This analog output module has eight output channels
which can be connected to actuators or other suitable
analog devices.
The unit plugs into the XSL513 Terminal Block and can be
inserted and removed without disturbing other units on the
bus. Terminals AO1 through AO8 are the analog outputs.
Terminals 9 through 17 are connected to ground. Eight red
LEDs are located on top of the module. The brightness of
each LED is proportional to the output level of the cor-
responding channel. The module address is set using the
rotary HEX switch.
Open Loop Actuator
Object Type #3
Mandatory
Network
Variables
input
NV 1 nviRequest
SNVT_obj_request
nv1 nviValue
SNVT_switch
input
NV 1 nviRequest
SNVT_obj_request
nv3 nvoFeedback
SNVT_switch
Optional
Network
Variables
Optional
Configuration
Properties
input
NV 1 nviRequest
SNVT_obj_request
nc1 UCPTSensorConfig
input
NV 1 nviRequest
SNVT_obj_request
nc2 UCPTdriveTimeClose
input
NV 1 nviRequest
SNVT_obj_request
nc3 UCPTdriveTimeOpen
input
NV 1 nviRequest
SNVT_obj_request
nc4 UCPTsyncMin
input
NV 1 nviRequest
SNVT_obj_request
nc5 UCPTsyncMax
input
NV 1 nviRequest
SNVT_obj_request
nc6 UCPTsyncCharge
input
NV 1 nviRequest
SNVT_obj_request
nc88 UCPTminDeltaLevel
input
NV 1 nviRequest
SNVT_obj_request
nc96 UCPTdelayTime
Figure 3. LONMARK Object for each analog output.

DISTRIBUTED I/O
7 EN0B-0090
Table 6. LONMARK Object NVs for the XFL522B.
NV Name Type Range Description
nviValue SNVT_switch Receives the value for the output channel.
nvoFeedback SNVT_switch Transmits the feedback value of the actuator output. If
the manual override switch is set to 0, or if the manual
override module is not plugged in, the feedback output
reflects the value of nviValue. As soon as the manual
override switch is set at the 20% threshold, the
Actuator Objects adopts this manual value. In this
case, the nvoFeedback state field will be 0xFF (invalid)
and the value field will contain the actuator position.
If the actuator is configured as a motor, the position
commanded with the manual override switch will be
reflected in the open/close commands for a floating
actuator.
If the manual override switch is in the automatic posi-
tion, data is transmitted whenever nviValue is written.
If the manual override switch is in the manual position,
data is transmitted whenever the manual position is
changed.
UCPTSensorConfig none 0 = not used
6 = 0 to 10V (default)
7 = motor (floating)
Specifies the actuator output type for an output
channel.
UCPTdriveTimeClose SNVT_time_sec 10.0 to 1000s
(default = 90.0s) Specifies a floating actuator’s runtime from 100% to 0%.
UCPTdriveTimeOpen SNVT_time_sec 10.0 to 1000s
(default = 90.0s) Specifies a floating actuator’s runtime from 0% to 100%.
SCPTdelayTime SNVT_time_sec 0.0 to 10.0s
(default = 5.0s) Specifies the delay time before a floating actuator changes its direction. This avoids mechanical
problems that could occur when the run direction
changes due to an update to nviValue while the
actuator is still moving.
SCPTminDeltaLevel SNVT_lev_cont. Specifies the delta level for an update to nviValue to
be exceeded before a new position is calculated for
the floating motor model. This is applicable only if the
actuator is configured as a motor.
UCPTsyncMin SNVT_lev_cont 0 to10%
(default = 2%) Specifies the lower synchronization threshold. If the actuator is configured as a motor and the value
commanded through nviValue approaches 0%, the
actuator is synchronized to 0% as soon as nviValue
reaches the percentage specified by UCPTsyncMin.
UCPTsyncMin SNVT_lev_cont 90 to 100%
(default = 98%) Specifies the upper synchronization threshold. If the actuator is configured as a motor and the value
commanded through nviValue approaches 100%, the
actuator is synchronized to 100% as soon as nviValue
reaches the percentage specified by UCPTsyncMin.
UCPTsyncCharge SNVT_lev_cont 0 to 127.5%
(default = 100%) Specifies the additional runtime when an actuator per- forms a synchronization. This is to ensure that the
actuator reaches the end position even if the actuator
position is not what it should be due to inaccuracy.
For example, with UCPTsyncCharge at 100%, an
actuator with a theoretical current position of 20%
would be forced to run 120% of the runtime specified
by UCPTdriveTimeClose if it starts a synchronization
from this point of operation.

DISTRIBUTED I/O
EN0B-0090 8
Relay Modules MCD 3 and MCE 3
The relay modules facilitate the control of peripheral devices
with high load via the analog outputs. Figure 4 and Figure 5
present connection examples for the relay modules MCD 3
and MCE 3, respectively.
230Vac/120Vac FU
S
E
0.2A
K 1
K 2 K 3
3 A
1112131415161718
12
2
3
K3
45
K1
LN
678
MCD 3
A
O1
18
A
O2
19
A
O3
20
A
O4
21
00000001
Figure 4. Analog Outputs, Connection of Relay MCD 3.
MCD 3
Relay terminal 17 controls the changeover contact K3. Relay
terminal 18 controls the ON contacts K1, K2. Ground can be
looped through terminals 2/3.
230Vac/120Vac FU
S
E
A
O1
18
A
O2
19
A
O3
20
A
O4
21
00000002
1112 13 14 15 1617 18
123
K1 K2 K3
45678
MCE 3
0.2 A
K 1
K 2
2 A
K 3
Figure 5. Analog Outputs, Connection of Relay MCE 3.
MCE 3
Relay terminal 16 controls the ON contact K3. Relay terminal
17 controls the changeover contact K2. Relay terminal 18
controls the changeover contact K1.
Power Supply
Several relay modules can be connected in series via the
bridged terminal pair:
24 Vac: Terminals 11/12 of the relay
24 Vac (-): Terminals 13 to 16 of the relay

DISTRIBUTED I/O
9 EN0B-0090
Digital Input Module XFL523B •Twelve inputs (DI1 – DI12)
•R
i= 10K ohm
•Max. 20 Hz input frequency
•Switching conditions: OFF: Ui≤2.5 V; ON: Ui≥5 V
•Protected switching up to 40 Vdc / 24 Vac
•LED per channel, color selectable in two groups (SW1: DI
1 – 6; SW2 DI: 7 – 12); color combinations: see Table 7
•18 Vdc auxiliary voltage supply (unregulated)
•1 sec polling time with CPU
•Green power LED (L1) and red LONWORKS status LED
(L2)
•Dimensions (WxLxH): 47x97x70 mm
The digital input module has twelve input channels which can
be used for connecting sensors or any device providing a
digital output. The input values are read by the CPU and can
then be used for monitoring or as parameters for controlling
other devices
The unit plugs into the XSL513 Terminal Block and can be
inserted and removed without disturbing other units on the
bus. Terminals DI1 through DI12 are the digital inputs and
terminals 13 through 17 are wired together and provide an
auxiliary voltage of 18 Vdc. The module address is set using
the rotary HEX switch.
Beginning with V2.04.00 Excel 500 controller firmware, the
online point attribute Normally Open / Normally Closed
(NO/NC) defines the relation between the physical state
(contact position) and its logical status. See Table 7.
Open Loop Sensor
Object Type #1
Mandatory
Network
Variables
input
NV 1 nviRequest
SNVT_obj_request
nv1 nvoDiValue
SNVT_switch
input
NV 1 nviRequest
SNVT_obj_request
nv1 nvoDiValueCnt
SNVT_count
Optional
Network
Variables
Optional
Configuration
Properties
input
NV 1 nviRequest
SNVT_obj_request
nc1 UCPTSensorConfig
input
NV 1 nviRequest
SNVT_obj_request
nc2 UCPTSendOnDelta
input
NV 1 nviRequest
SNVT_obj_request
nc27 SCPTSendOnDelta
Figure 6. LONMARK Object for each digital input.
For each Sensor Object, the XFL523 Digital Input Module
provides an additional output NV, SNVT_switch. For an open
LONMARK integration, this offers a more convenient way of
accessing the sensor value compared to using the NV
SNVT_count. If the Sensor Object is configured as
“Totalizer”, this NV is invalid (switch.state = 0xFF,
switch.value = 0).

DISTRIBUTED I/O
EN0B-0090 10
Table 7. Relation between physical state and logical status as defined by the point attribute NO/NC for the XFL523B.
Contact Position NO/NC Attribute Logical Status Input Voltage LED Switch On LED Switch Off
Open NO 0 ≤2.5 V Off Green
Closed NO 1 ≥5 V Yellow Red
Open NC 1 ≤2.5 V Yellow Red
Closed NC 0 ≥5 V Off Green
Table 8. LONMARK Object NVs for the XFL523B.
NV Name Type Range Description
nvoDiValue SNVT_switch Transmits the state of the input channel every time
there is a state change or if SCPTMaxSendTime in
the Node Object has expired.
nvoDiValueCnt SNVT_count binary: 0, 1
totalizer: 0 to 65534
(65534 initial value)
Transmits the state of the input channel every time
there is a state change or if SCPTMaxSendTime in
the Node Object is expired. If configured as a
totalizer, this NV transmits the number of transitions
from 0 to 1.
UCPTSensorConfig 0 (not used)
1 = binary (default)
2 = totalizer
Specifies the setting for a sensor channel.
UCPTSendOnDelta SNVT_count 0 to 65535 Specifies the difference in totalizer count required
before a transmission of the value output of the
Sensor Object takes place.
SCPTDirection SNVT_state Used to define the relation between the logical status
of the input and the state of the LED. One bit cor-
responds to one input channel (bit 4 = input channel
12, bit 15 (MSB) = input channel 1). If a bit is clear,
the LED for the channel will be 0=green and 1=red. If
the bit is set, then 0=red and 1=green.