USB to AB PLC5 on DH+

I am looking to connect to an AB PLC5.  Their DH is running at 57k.  I have been told by the AB rep in my area that they do not have the proper device for newer computers to do this.  I want to confirm two things.
     1.  That your USB devices WILL work with RSLinks software for communicating to the PLC5 in a WinXP environment.
     2.  That your devices can operate at the 57k speed rather than the 19.2k that the AB cards can operate.

The GW1000-DHP1 (USB or serial to DH+) will work great in your application allowing RSLINX communication to a PLC 5 on DH+ in XP. The speed selections are 19.2Kb, 38.4Kb, 57.6Kb, 115.2kB and 230.4Kb.  Another option may be our GW1000-ABEIP which interfaces RSLINX via Ethernet to DH+.

Ethernet or Modbus to DH+

Currently we have a project that the existing communication protocol using DH+, we need the converter from DH+ to any of Ethernet or Modbus or Profibus. I just go through your website and fond your GW1000DHP1 or GW1000ABEIP might be suitable, but please advice whether you have DH+ to Profibus DP for our reference.

Thanks for your inquiry.  The best solution will be our newer platform, GW1000-ABEIP which will allow Ethernet/IP, AB Ethernet to DH+ or GW1000-DHPM (Modbus to DH+).

My 1784-PKTX doesn’t fit in my new computer and looking at other options besides the 1784-U2DHP which is pricey.

My 1784-PKTX doesn’t fit in my new computer and looking at other options besides the 1784-U2DHP which is pricey.

The GW1000 multi-protocol platform may be a good alternative to the 1784-U2DHP, 1784-PKTX, 1784-PCMK or 1784-KTX. It lists at $1,250 and has both USB and 9 pin serial port.  It’s multi-protocol functionality will also allow you to switch to AB Ethernet driver in RSLINX for Remote programming or progamming between Legacy DH+/DH-485 protocols and new AB Ethernet PLCs (ie. SLC 5/05).

Why is the GW1000-DHP1 (DF1 to DH+) better than the 1784-U2DHP.

Why is the GW1000-DHP1 (DF1 to DH+) better than the 1784-U2DHP.

There are many of reasons:

  • Cost: $1,250 list.
  • Serial functionality: 9 pin or USB
  • Multi-protocol gateway: GW1000 can be converted from USB serial to RSLINX AB Ethernet for remote programming (upto 5 RSLINX workstations).
  • No COM ports: None required with the GW1000 which is setup via Web screens or Telnet
  • Legacy PLCs to Ethernet: GW1000-ABEIP can interface legacy DH+ / DH-485 PLC 5s, SLC 5/03s, SLC 5/04s, & Panelview to RSLINX AB Ethernet for remote programming or messaging with new SLC 5/05s, Compactlogix, Controllogix, Micrologix.

Economical option to the 1784-U2DHP

I am looking for a more economical option to the 1784-U2DHP?

The GW1000 multi-protocol platform lists at $1,250.00 and will allow you to program RSLINX via USB DF1 protocol (1770-KF2 driver) or AB Ethernet.

Benefits of GW1000 vs 1784-U2DHP

GW1000 interfaces to both DH+ and DH-485.
GW1000 will connect  via both Ethernet and serial DF1 protocol.
GW1000 will connect to 5 RSLINX workstations on Ethernet to DH+
GW1000 can easily convert to multiple protocols on DH+ or DH-485
GW1000 has either USB or 9 pin serial functionality.

Redundant SCADA server to DH+ PLCs

Q. 1. Will this device work as a common connection from redundant SCADA servers to DH+ PLCs (PLC5)? Both SCADA servers are on-line and poll simultaneously?
2. Will this device work with servers running MS Server 2008?
3. This device will be mounted within a server rack with 110 VAC only. Is there a power supply option to accommodate this?

1) Yes, up to 4 connections are supported
2) Please consult your software vendor for compatibility with MS server 2008.
3) We do not sell power supplies. Please source a 24 Volt DC power supply.
The GW1000 consumes approximately 100mA, so a power supply with a 500mA rating is plenty. The device ships with screw terminals for power supply connection. The GW1000 can also be powered by a USB port, however, we don’t recommend USB power for large DH+ networks. For maximum reliability, we recommend an external 24Volt DC power supply.

Controllogix to DH-485

Q. We have a customer wanting to connect PCs on Ethernet/IP (A-B) to SLCs on DH-485. Also to connect C-Logix on Ethernet/IP to SLCs on dh-485. I believe the DL-GW1000-ABEIP-DH-485 is the device?

A. Since DH485 is becoming less popular over the years, we have removed the circuitry required to support DH485 signal levels. The base unit will support Ethernet to DH+, serial to DH+, or ethernet to DH485 over the
RS232 port. The DH485 communication protocol is supported, but only over the RS232 port voltage levels. For those customers wishing to connect the GW1000 to a network of DH485 equipment, a 1761-NET-AIC
module will be required. Connect a serial D9 to D9 null-modem cable between the RS232 port on the GW1000 to the RS232 port on the 1761-NET-AIC. Connect the screw terminals of the 1761-NET-AIC to the DH485 equipment network.”

Q. Does this allow full access for PLCs, PCs etc from the ethernet/IP side to the DH-485 side?

A. Yes, the GW1000 can accept simultaneous connections over ethernet from PLC’s, and PCs, and convert to DH485 protocol over the RS232 D9 connector.
Please be sure to install a 1761-NET-AIC if you need to connect to a network of DH485 equipment.

RSLogix 500/RSLINX Download/Upload to SLC 5/04

Q.Will GW1000-ABEIP allow download/upload and online monitoring with RSLogix500/RSLinx to SLC 504 over Ethernet? Looks like it, but “sending data” is not always the same as programming software connection.

A. Yes, going online and programming a SLC 5/04 processor is a very common application for our GW1000-ABEIP. Please GW1000-ABEIP application notes

PLC-5 / SLC 5/04 to DH+

Q: How do I interface a legacy PLC-5 / SLC 5/04 via DH+ to AB’s Ethernet/IP or Ethernet TCP/IP?

A: Our GW1000-ABEIP will allow RSlinx & RSLogix to access DH+ via Ethernet TCP/IP.