1.4.2 Document conventions GUID-96DFAB1A-98FE-4B26-8E90-F7CEB14B1AB6 v8• Abbreviations and acronyms in this manual are spelled out in the glossary. Theglossary also contains definitions of important terms.• Push button navigation in the LHMI menu structure is presented by using thepush button icons.For example, to navigate between the options, use and .• HMI menu paths are presented in bold.For example, select Main menu/Settings.• LHMI messages are shown in Courier font.For example, to save the changes in non-volatile memory, select Yes andpress .• Parameter names are shown in italics.For example, the function can be enabled and disabled with the Operationsetting.• Each function block symbol shows the available input/output signal.• the character ^ in front of an input/output signal name indicates that thesignal name may be customized using the PCM600 software.• the character * after an input signal name indicates that the signal mustbe connected to another function block in the application configurationto achieve a valid application configuration.• Dimensions are provided both in inches and millimeters. If it is not specificallymentioned then the dimension is in millimeters.• Logic diagrams describe the signal logic of the function block and arebordered by dashed lines.In a logic diagram, input and output signal paths are shown as lines that touchthe outer border of the diagram. Input signals are always on the left-hand sideand output signals are on the right-hand side.Input and output signals can be configured using PCM600. They can beconnected to the inputs and outputs of other functions and to binary inputs andoutputs. Examples of input signals are BLKTR, BLOCK, and VTSZ.Examples of output signals are TRIP, START, STL1, STL2, and STL3.• Frames with a shaded area on the right-hand side represent settingparameters. These parameters can only be set via the PST or LHMI.Their values are high (1) only when the corresponding setting parameteris set to the symbolic value specified within the frame. Example is thesignal Timer tPP=On. Their logical values correspond automatically tothe selected setting value.• Internal signals are illustrated graphically and end approximately 2 mmfrom the frame edge. If an internal signal path cannot be drawn with acontinuous line, the same signal name is used where the signal shouldcontinue, see figure 2 and figure 3. Example of the internal signal isBLK.• Signal paths that extend beyond the logic diagram and continue inanother diagram will be approximately 2 mm from the frame edge, seefigure 3 and figure 4. Examples are STNDL1N, STNDL2N, STNDL3N,STNDL1L2, STNDL2L3, and STNDL3L1.Section 1 1MRK 511 424-UEN BIntroduction32 Bay control REC650 2.2 IECTechnical manual
