Features
24 SPDT, Form C Relays (DPDT optional)
Fully compatible with any ACCES digital I/O card (except for IOD-64)
3A carry-current contact ratings on ROB-24 and 4A on ROB-24H
Screw terminals for #14 through #22 AWG wire
LED status indicators for each relay
Model ROB-24 and ROB-24H are a 24-channel relay-output cards that can be controlled by digital inputs from ACCES IOD-Series digital I/O cards or other manufacturer's digital output cards. The card can be powered by either +5 VDC (ROB-24 or ROB-24H) or by 125 VAC (ROB-24-1 or ROB-24H-1). In the former case, we can also supply a seven-foot cable, CAB-MLX, that mates with standard molex connectors used in personal computer distribution. For operation from AC-power inputs, the "_1" versions of these cards, screw terminals for the AC-power input and a power transformer are included. The cards also contain 24 LED's, one associated with each relay. These illuminate when their associated relays actuate.
For remote (RS-485) control of relays, you can also connect a modified ROB-24 to our RDG-24.
Each relay provides normally-closed and normally-open contacts (SPDT). If you need dual Form C contacts (DPDT), you may specify ROB-24-2 or ROB-24H-2.
I/O connectors for 50-pin connections (from ACCES' IOD-Series cards) and 37-pin connectors are provided. The latter provide means to use these relay cards with other manufacturer's cards if they use 37-pin connections. Interconnection to the digital output card can be via ACCES' model CAB50F-xx ribbon cable to ACCES' I/O cards or via CAB37-xx ribbon cable to other I/O cards. The relays are actuated by a 5-volt logic signal applied to appropriate pins of either the 50-pin or the 37-pin connector. If the digital-output card to be used has an unbuffered output (e.g., direct output from a type 8255 Programmable Peripheral Interface chip), then specify ROB-24-3 or ROB-24H-3. (Note: When Option 3 is selected, the relays will be actuated when power is applied to the card.) Thus, by use of ROB-24 or ROB-24H, you can realize simple, inexpensive control of heaters, fans, lights, etc.
The ROB-24 may be interfaced to any port of any ACCES IOD-Series card. Normally, digital inputs are pulled down to ground through 680 ohm resistors. However, if you prefer that they be pulled up to +5VDC, you can specify ROB-24-5 or ROB-24H-5. You can have multiple options in the card. For example, if you need AC-powered capability, DPDT relay output connections, and signals will come from an unbuffered digital output card, then the model number becomes: ROB-24-1-2-3
PROGRAMMING
Programming ROB-24 is done by simple OUT statements. For example, if the card is to be controlled by an IOD-24E located at base address hex 310, BASIC statements would be used as follows:
10 OUT &H313,& amp;H80
'Sets the ports to use as outputs
20 OUT &H310,1
'Activates port A, bit 0 (relay 0)
30 OUT &H311,16
'Activates port B, bit 4 (relay 21)
PIN CONNECTIONS
Two connectors are provided for control inputs; one in 50-pin format and one in 37-pin format. For 50-pin connectors, the mating connector is AMP 1-499776-0 or equivalent. For 37-pin connectors, the mating connector is an AMP 747304-1 or equivalent.
Features
- 24 SPDT, Form C Relays (DPDT optional)
- Fully compatible with any ACCES digital I/O card (except for IOD-64)
- 3A carry-current contact ratings on ROB-24 and 4A on ROB-24H
- Screw terminals for #14 through #22 AWG wire
- LED status indicators for each relay
Model ROB-24 and ROB-24H are a 24-channel relay-output cards that can be controlled by digital inputs from ACCES IOD-Series digital I/O cards or other manufacturer's digital output cards. The card can be powered by either +5 VDC (ROB-24 or ROB-24H) or by 125 VAC (ROB-24-1 or ROB-24H-1). In the former case, we can also supply a seven-foot cable, CAB-MLX, that mates with standard molex connectors used in personal computer distribution. For operation from AC-power inputs, the "_1" versions of these cards, screw terminals for the AC-power input and a power transformer are included. The cards also contain 24 LED's, one associated with each relay. These illuminate when their associated relays actuate.
For remote (RS-485) control of relays, you can also connect a modified ROB-24 to our RDG-24.
Each relay provides normally-closed and normally-open contacts (SPDT). If you need dual Form C contacts (DPDT), you may specify ROB-24-2 or ROB-24H-2.
I/O connectors for 50-pin connections (from ACCES' IOD-Series cards) and 37-pin connectors are provided. The latter provide means to use these relay cards with other manufacturer's cards if they use 37-pin connections. Interconnection to the digital output card can be via ACCES' model CAB50F-xx ribbon cable to ACCES' I/O cards or via CAB37-xx ribbon cable to other I/O cards. The relays are actuated by a 5-volt logic signal applied to appropriate pins of either the 50-pin or the 37-pin connector. If the digital-output card to be used has an unbuffered output (e.g., direct output from a type 8255 Programmable Peripheral Interface chip), then specify ROB-24-3 or ROB-24H-3. (Note: When Option 3 is selected, the relays will be actuated when power is applied to the card.) Thus, by use of ROB-24 or ROB-24H, you can realize simple, inexpensive control of heaters, fans, lights, etc.
The ROB-24 may be interfaced to any port of any ACCES IOD-Series card. Normally, digital inputs are pulled down to ground through 680 ohm resistors. However, if you prefer that they be pulled up to +5VDC, you can specify ROB-24-5 or ROB-24H-5. You can have multiple options in the card. For example, if you need AC-powered capability, DPDT relay output connections, and signals will come from an unbuffered digital output card, then the model number becomes: ROB-24-1-2-3
PROGRAMMING
Programming ROB-24 is done by simple OUT statements. For example, if the card is to be controlled by an IOD-24E located at base address hex 310, BASIC statements would be used as follows:
10 OUT &H313,& amp;H80
- 'Sets the ports to use as outputs
20 OUT &H310,1
- 'Activates port A, bit 0 (relay 0)
30 OUT &H311,16
- 'Activates port B, bit 4 (relay 21)
PIN CONNECTIONS
Two connectors are provided for control inputs; one in 50-pin format and one in 37-pin format. For 50-pin connectors, the mating connector is AMP 1-499776-0 or equivalent. For 37-pin connectors, the mating connector is an AMP 747304-1 or equivalent.
