jose7771

Analog Output Card Selection -------------------------------------------------------------------------------- HI, i am using ml 1500 ALLEN BRADLEY WHICH IS USED FOR BURNER MANAGEMENT CONTROL, I AM RECEVING 02 NOS OF ANALOG INPUT (FLOW TRANSMITTER 4-20 MA , COMBUSTION AIR FLOW AND NATURAL GAS FLOW) AND MY FINAL CONTROL ELEMENT IS FLOW CONTROL VALVE AND COMBUSTION AIR DAMPER , WHICH IS USED TO CONTROL AIR FUEL RATIO PLZ SUGGEST ME AS TO WHICH OUTPUT CARD SHOULD BE SELECTED IF I WANTED BOTH ANALOG INPUT AND OUTPUT IN SEPERATE CARDS REGARDS JOSE

hi , i am new to plc and its applications i want to know wat is meant by watch dog ( output check), because in our purchase order its been mentioned that plc should have watch dog ( output check), and wat r its applications regards jose

HI TO ALL, I AM BEEN USING ALLEN BRADLEY SYSTEMS 4 A LONG TIME,BUT NOW AFTER USING SIEMENS SYSTEMS 226, I AM REALLY IMPRESSED BY THE SIMPLE COMMUNICATIONS IT USES TO COMMUNICATE WITH PLC , AS COMPARED TO CONFIGURING DRIVERS AB DF 1 AND ALL THOSE MESSY THINGS, TRULY ITS A BEAUTIFUL BABE, AND THE SUPPORT SIEMENS GUYS OFFERED FOR MY PROJECT WAS REALLY APPRECEATING, I AM WRITING THIS JUST TO SHOW MY COURTESY. WARM REGARDS JOSE

HI AM USING TP 270 10", WHILE DOWNLOADINGFROM MY PC TO TP, AT FIRST INSTANCE IT SAYS COMMUNICATION ERROR,CHECK BAUD RATE ETC,THEN FOR SECOND TIME I DO IT, IT SAYS PROTOOL RUNTIME SHUTDOWN AND SAYS DOWNLOAD ERROR AND FOR THE THIRD TIME IT ULTIMATELY CLICKSAND WORKS I AM USING COM 2 PORT WITH USB 2 SERIAL CONVERTER CABLE IN PC,CPU226,WITH PORT 0 COMMECTED TO HMI

HI, AM USING PROTOOL FOR TP 270 I HAVE CREATED AN OBJECT FROM THE LIBRARY ,THAT IS NATURE(FIRE),SUPPOSE THAT INPUT IS COMING FROM I 0.0, (FLAME SWITCH, DURAG)HOW TO MAKE IT INVISIBLE, FOR I =0 AND VISIBLE FOR I=1. PLEASE HELP ME . REGARDS JOSE

SIR WE R SUPPLYING ONE PRESSURISED PANEL WITH S7 226 AND TP 270 TO BE USED IN IIC AREA. I HAVE ONE APPREHENSION THAT MY TP CAN BE USED IN II C AREA. WHEN I ENQUIRED ABOUT IT WITH SIEMENS GUYS THEY SAID IT CAN BE USED IN FACT THEY SHOWED ME ALL RELEVANT CERTIFICATES,BUT MY COLLEGUES ARE ADAMANT AND SAYING THAT TP CANNOT BE USED IN IIC AREA PLEASE HELP ME OUT WITH UR VALUABLE SUGGESTION REGARDS JOSE

YES ML 1200 DO HAVE OPTICAL ISOLTION 4 I/OS U SHORT ONE OF THE INPUTS MAKE A LOOP, AND FORCE THE SAME I/P BY S/W U WILL SEE THE DIFFEREENCE U CAN ALSO VISIT THE AB SUPPORT TEAM http://support.rockwellautomation.com/ REGARDS JOSE

HI DURING MY LAST VISIT TO ONE OF THE SITE,IWAS RECEVING SOME OF THE INPUTS FROM DCS SIDE , BUT SINCE DCS ENGINEERS WERE NOT AVAILABLE I WAS FORCING THOSE CONDITIONS , BUT UNFOTUNATELY WHILE LEAVING I DIDNT REMOVE THE FORCE CONDITIONS , PLC I AM USING IS ML 1500 (1764-24BWA) NOW THE CLIENT WANTS TO REMOVE ALL THE FORCE CONDITIONS TO HOOK UP TO DCS,IS THERE ANY WAY TO REMOVE THE FORCE CONDITIONS WITHOUT USING LAPTOP OR PC , THAT IS THROUGH SOME H/W SETTINGS REGARDS JOSE

HI , TILL NOW I HAVE BEEN USING ALEEN BRADLEY PLC 1500, BUT NOW WE HAVE DECEIDED TO MIGRATE TO SIEMENS PLC (S7 226) PREVIOUSLY FOR DOWN LOADING THE PROGRAM FORM LAPTOP TO PLC WE WERE USING USB TO SERIAL COM PORT (P PIN D TYPE MALE ) SINCE MY LAPTOP DIDNT HAVE THE PROVISION FOR COM PORT,I AM USING WINDOWS XP( OPERATING SYSTEMS) I WANT TO KNOW THAT FOR THE SIEMENS SYSTEMS( S7 226) THE MENTIONED METHOD WILL WORK OR NOT REGARDS JOSE

sir with ref to ur reply,i am using 2 ports seperately 1 hmi 2 dcs i will be connecting my laptop to one of the port and hmi to other port, after testing the sequence i will be configure the port connected to the laptop to be connected to dcs regards jose

thanks for the manual regards jose

hi , i am using s7 cpu 226 with hmi touch panel 270 10" my plc will be integerated to dcs using modbus protocol so what i have to use as master as dcs or hmi and which ports has to be congigured as what please help me regards jose

the sir thanks for ur useful information which is really helpful to me ,i really appreciate it i have one more doubt , as to how to assign the modbus code and to interface with hmi and what will be acting as the master ( hmi tp 270 or dcs ) the dcs uses modbus RS 232, I have visited the website suggested by u but the page was showing some error .please help me out regards jose

hi to all i am using s7, cpu type 226 with hmi ( touch panel 270 -10'') my plc will be integerated to dcs (client scope), using modbus protocol .please suggest me on how to interface with dcs both hardware and software and the addressing schemes ( coils , contacts, holding registers, and the relevant data), similarly as to how to map address into hmi regards jose