PB32HQ OPTO 22, PB32HQ Datasheet - Page 6

• Manufacturer Part Number: PB32HQ
• Description: Programmable Logic Controller
• Manufacturer: OPTO 22
• Type: Mounting Boardsr

Specifications of PB32HQ

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Mounting Type: Rack Mount
• Number Of Pins: 50-Pin
• Standards: UL Listed, CSA Certified
• Terminal Type: Screw
• For Use With: Quad Pak I/O Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DATA SHEET
Form 737-050801
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: [phone] • (800) 321-OPTO • Fax: [phone] • www.opto22.com
maximum watchdog timeout values.
Table 3: Watchdog Timeout ValuesJumpers 7 and 8 (Reset)
Note that the reset is not intended to be used to shut off outputs upon a system communication error.
low, as shown in Table 4. In general, it does not matter which polarity you select as long as you are consistent throughout your Pamux
system.
Table 4: Reset Jumper
condition, an active reset line will have no effect on channel 0 (although it will deactivate any other channels that are on).
on whether or not the reset activates before the timeout occurs:
Ter minating a B4 Station
on the bus are the only devices that should be terminated. Note that if you are using an Opto 22 Pamux adapter card, the host computer is
automatically terminated, since termination resistors are built into the card.
the terminator board is installed correctly, its component side faces away from the I/O modules and its red wire connects to the +5V
terminal on the rack.
Minimum
Reset Level
Active High
Active Low
1.0 sec
The watchdog timeout interval is set within the hardware and cannot be changed by the user. Refer to Table 3 for minimum, typical, and
One of the control lines on the Pamux bus is the reset line. This line is used for turning off the relays on all Pamux stations on the bus.
Two jumpers control how the reset line affects the B4. Jumper 7 determines the polarity of the reset line, either active high or active
Jumper 8 determines how the reset line affects the watchdog timer function of channel 0.
If jumper 8 is not installed, the reset line will not affect the watchdog timer function. Hence, if channel 0 activates due to a watchdog
If jumper 8 is installed and the watchdog jumpers are configured to activate channel 0 upon a timeout, the state of channel 0 depends
• If the reset line activates first, all outputs will deactivate. If a subsequent timeout occurs, no effect will take place until the reset
• If the timeout occurs first, the watchdog function takes place and channel 0 activates. If a subsequent reset occurs, channel 0 will
For stations on a Pamux bus to operate correctly, both ends of the bus must be terminated. The host computer and the last Pamux station
To terminate a B4 station, plug a Pamux bus terminator board (TERM1 or TERM2) into either connector on the I/O mounting rack. When
Figure 7 illustrates the proper installation of the terminator board.
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line deactivates, at which time the watchdog function will take place and channel 0 will activate.
not be affected and will remain active.
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1.6 sec
Typical
Jumper 7
Out
In
Maximum
2.25 sec
B4 INSTALLATION NOTES
BRAIN BOARDS
CLASSIC PAMUX
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