Dec
21
2008
ADAM-4056S is a 12-channel sink type isolated digital output module for critical applications. The open collector output can provide voltage from +5 to +40 V and the status reading output could see on the LED indicator. On this article, I would like share my experience on communication between ADAM-4056S and Visual Basic 6.0. Although ADAM-4056S support for ASCII and Modbus/RTU protocols, on this article I just explain for ASCII protocol.
I have successful communicate Visual Basic 6.0 to ADAM 4056S via PCI-1612CU-AE (4-port RS-232/422/485 Universal PCI COMM Card w/Isolation & Surge Protection). Continue Reading »
Tags: HMI/SCADA, Modbus
Dec
08
2008
This system working very well to perform the analog data acquisition (temperature) from many RTD to PLC SLC500 Allen Bradley via ADAM-4015, PROLINK-5201/5202-MNET-MCM(4) and PROSOFT-MVI56-MCM. The advantages of this acquisition system are: we could cost-down the using of analog cable, possibility of high speed data transfer until 100 Kb/s – 10Mb/s for long distance way (approximately until 1200 meter), possibility using redundancy concept to optimize and validate data collection from field instruments, reduce the complexity of analog cable installation and noise from unwanted signal (induced noise, ground level differences, impedance mismatches, failure to effectively bias for idle line conditions). You know that analog signal very sensitif from noise. Continue Reading »
Tags: Modbus, PLC/PAC
Nov
05
2008
Began on past March 2008, I am join with Automation Engineering Division, PT. Sinar Inti Electrindo Raya as Automation Project Engineer. Before that, PT. SIER had the several automation project, such as 50 TPD (Ton per Day) Biodiesel Plant in North Jakarta, SCADA (Supervisory Control and Data Acquisitions) in IKPP Riau and Crushing Area and Barge Loading for KAYAN in Kalimantan.
After that, I am join to team of Biodiesel Plant. Then I choose to develop the user friendly interface for control and process monitoring of physical variables on biodiesel plant. Actually, this interface had been develop by other team but not finished well. Continue Reading »
Tags: HMI/SCADA
Jul
19
2008
According to CAN Europe estimation, global hydrogen production is at around 45 million tons per year or 500 million cubic metres per year. Half of the global production is used in the manufacture of ammonia-based fertilisers and 1 % of global primary energy demand used for energy purposes. For example, U.S. demand for hydrogen currently is about 9 million tons per year and this always growth every year.
There are various of conventional hydrogen production, which are :
Fossil Fuel Reforming
Steam Reforming (SR) – natural gas reacts with steam at 3 – 25 bar pressure (1 bar = 14.5 psi) and temperature 700 – 1,000°C (endothermic/heat absorbing reaction) with the help of a catalyst, thus producing the synthetic gas (syngas). Syngas is a mixture of hydrogen with carbon monoxide. Continue Reading »
Tags: Hydrogen
