53
EMR
3
- Truck Installations
EMR4 Terminal & Fueling Depot Installation
Installing the Remote Pulser (Optional)
Installing the Remote Pulser (Optional)
To install the optional remote pulser see “Installing the Remote Pulser (Optional)” on page 43.
RS-232 Peripheral Equipment Requirements
Any peripheral equipment connected to an RS-232 serial port must meet the following criteria:
1.
Peripheral equipment must be UL approved.
2.
The equipment must have an EIA standard RS-232C or RS-232D communications protocol.
3.
The equipment must NOT be installed over or in a hazardous location.
4.
Maximum cable length is 50 feet (15.24 m).
5.
Serial parameters
- Baud: 9600
- Parity: none
- Stop bits: 1
- Data bits: 8
Note: for a list of serial commands, contact Veeder-Root directly.
Pulse Output for EMR4
RANGE OF VALUES ALLOWED FOR SET PULSES/VOL
• Minimum: 0.0
• Maximum: 99,999
HARDWARE SIGNALS
POUT-1 and POUT-2
• POUT-1 and POUT-2 are open collector outputs with an internal pull-up resistor (2.4 K
). The output voltage
can be set to either 5, 12, or 24 volts using the pulse output voltage rotary switch (see Figure 42).
• Typical duty cycle: variable length square wave
• Minimum period: 1.072 ms
• Maximum frequency: 933 Hz
• Minimum lag time: 460 ms (if within flow rates)
