GDA-1600 16-Channel Controller
Instruction 5700-9001
24
Entries
Description
Piezo Alarm
Turning
Piezo Alarm ON
causes the audible piezo to duplicate the action of the horn
relay. This feature may be used to provide a low decibel indication of the status of the
system’s horn.
Alarm 1
Alarm 1 & Alarm 2
menus control how this alarm level from each channel will affect
the common horn relay. Choices are
OFF
,
ON
or
BEEP
(one Hz. Pulsating). As an
example, A2 conditions might pulse the horn (
BEEP
) and A1 conditions to cause a
steady horn (
ON
). Any other combination of these 3 choices is possible for A1 and A2
levels affecting the horn relay. This feature is very useful since it allows the horn relay
to serve as another level A1, level A2, or both; for channels 1-16, 1-8 or 9-16.
Individual channel alarms may also be configured to not affect the Horn relay on a
channel by channel basis (see section 3.2.2 on page 13).
Alarm 2
Failsafe
Failsafe
&
Horn Group
menu entries are identical to the descriptions for menus
Common Relay 1
&
Common Relay 2
in section 3.3.1.
Horn Group
Acknowledge Turning
Acknowledge
OFF
allows the common Horn relay to drive devices other than
horns or sirens such as a light or a fan.
Display Alm
Display Alm YES
forces the LCD to display the Bar Graphs screen upon any new alarm.
This feature is offered to satisfy applications requiring channels in alarm to be
displayed automatically (all channels are displayed on the Bar Graphs screen).
3.3.4 Comm Port Menus
Entries
Description
Slave ID
The system Comm Port menu (see Figure 3.10) allows for setting of the RTU
Slave ID
address,
Slave Baud
rate,
Parity
and
UART Timer
for the comm2
slave
Modbus serial
port (comm1
master
port ID settings are per channel as described in section 3.2.4).
This slave port may be used to transfer GDA-1600 data to a host device such as a PC,
PLC, DCS or even another GDA-1600. The slave port is addressable, allowing many
GDA-1600 controllers to be connected to a single RS-485 cable.
Slave Baud
Parity
UART Timer
The
UART Timer
setting is disabled with 00 seconds entered. Entering a value causes
the comm2
slave
Modbus serial port to reinitialize if no Modbus query is processed
within this time period. This ensures against serial port lockup. Section 6 of this
manual provides important information describing how to interface to the GDA-1600’s
Modbus slave port.
Mastr TO
The
Mastr TO
(master time out) and
Mastr PR
(master poll rate) menu items affect the
GDA-1600’s
master
Modbus port.
Time out
sets the length of time in milliseconds
before a communications error. Three consecutive timeout errors must occur before a
communication error is indicated. This item is useful for optimizing throughput to the
GDA-1600 from other slave RTUs.
Poll Rate
sets frequency of data requests to the
RTUs in milliseconds. This is useful when an RTU is limited in how fast it may respond
to consecutive data requests.
Mastr PR
Echo ACK
The
Echo ACK
(echo acknowledge) menu allows alarm reset / alarm acknowledge
functions be sent from the Modbus master port to connected Modbus slave devices
having Modbus coil 2001 assigned as the reset / acknowledge coil. This menu may be
set to
OFF
,
LCL
(local) or
MB/LCL
(Modbus/local). Off disables the feature and 2001
coils of slave devices are unaffected.
LCL
only writes to the 2001 coils of connected
RTUs when the local Reset pushbutton is pressed.
MB/LCL
writes these coils if this
GDA-1600’s 2001 coil has been reset via Mobus AND when the local pushbutton is
Summary of Contents for GDA-1600
Page 21: ...Instruction 5700 9001 GDA 1600 16 Channel Controller 21 Figure 3 10 Configuration Menus ...
Page 28: ...GDA 1600 16 Channel Controller Instruction 5700 9001 28 Figure 4 2 Main PCB ...
Page 36: ...GDA 1600 16 Channel Controller Instruction 5700 9001 36 Figure 4 7 Analog Output Board ...
Page 38: ...GDA 1600 16 Channel Controller Instruction 5700 9001 38 Figure 5 2 System Diagnostic Options ...
Page 53: ...Instruction 5700 9001 GDA 1600 16 Channel Controller 53 ...
