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- Galvanic Isolator or Zener barrier January 18, 2020i want to understand 1. what is the basic different between them? 2. is there any guidelines we have to follow isolator or barrier? 3. Can we able to use barrier in place of isolator 4. Can anyone please provide me a detail earthing diagram of them? I have seen that barrier is loop powered […]
- GE Frame 6b Ratchet Motor January 18, 2020Hi All, we had a ratchet pump failure failure on our GE Frame 6B gas turbine. it happened when coming off load. We found the ratchet pump motor mountings undone and the supply oil pipe fractured. the motor drive end bearing was disintegrated and entered the motor winding causing burn out. We did not do […]
- ABB IMS UNIX 10.20 STATION NOT COMING IN RING January 18, 2020Hai, We are using HP B2600 station for ABB MOD 300 IMS history built on unix 10.20 ACE and reporting purpose. Recently our IMS station got crashed, subsequently we prepared new IMS with unix 10.20 ACE and ABB enterprise historian CD'S. After installing these two CD'S and system is getting healthy when it is not […]
- Gas Turbine Flame Detection January 18, 2020Hi We are having GE Frame 6B DLN Gas turbines. The original flame scanners (Reuter Stokes) which came with these turbines were facing repeated fluctuation problems in their readings and these fluctuations utlimately were becoming so low that we had to take turbine shutdowns to clean the scanners. We usually have high humidity in our […]
- PLC3 1775-P2 January 18, 2020Anyone have any history with PLC3 racks? I have a 1775-A3 rack that has a 1775-P2 power supply. I'm having trouble sourcing a 1775-P2 replacement can a 1775-P3 replace a 1775-P2 without issue?
- Gas turbine starting system January 17, 2020Hi, we have a gas turbine that is started by a diesel engine and we want to study the possibility of changing the system to air/gas starter. what I don't understand is why does the diesel engine has a torque converter even though its torque is usually higher than an air starter. And I don't […]
- Can't reach server/slave! Check TCP/IP and firewall settings January 17, 2020hi, I'm trying to read data from a device. Protocol is modbus TCP and I connected it to Ethernet. It supports SCADA TCP interface. I'm using modpoll master simulator from my computer. But I get a response "Can't reach server/slave! Check TCP/IP and firewall settings" again. Response is below. .............. ~~~>modpoll -mtcp -r1 -c10 -1 […]
- How can slave address be assigned when I connect lots of slaves to master on RS485 communication? January 17, 2020Hi, I have some question about RS 485. As I said in title, what if I connect many slaves in one master, who assign slave address? Modbus master doesn't have any functions to assign slave address. The only thing it supplies is to input command in binary code. Master just executes the command. Then, how […]
- Read Data from SPPA-T2000 January 17, 2020Greetings, I need to read data from Teleperm XP (SPPA-T2000) via terminal bus and save them in a SQL Server database for some archiving and analysis purpose. Now I'm looking for a solution even if OPC Server or any other solutions. Can anyone help me about the available solutions? If i should use OPC Server, […]
- SPA BUS optical loop with non-ABB January 17, 2020Hi, Is it possible to create functional optical loop between ABB relay devices using non-ABB serial-to-optic fiber converters? I know I can use ABB SPA ZC modules, but they are not available currently... I appreciate any info. Thanks! O.