Smw98: Errors On The Expansion I/O Bus; Smb130: Freeport Control Register (See Smb30); Smb131 To Smb165: Hsc3, Hsc4, And Hsc5 Register - Siemens SIMATIC S7-200 System Manual

SMW98: Errors on the Expansion I/O Bus

As described in Table D-17, SMW98 gives you information about the number of errors on the
expansion I/O bus.
Table D-17 Special Memory Bytes SMW98
SM Byte Description
SMW98 This location is incremented each time a parity error is detected on the expansion I/O bus. It is
cleared upon power up, and can be cleared by the user.
SMB130: Freeport Control Register
Refer to Table D-11.

SMB131 to SMB165: HSC3, HSC4, and HSC5 Register

As described in Table D-18, SMB131 through SMB165 are used to monitor and control the
operation of high-speed counters HSC3, HSC4, and HSC5.
Table D-18 Special Memory Bytes SMB131 to SMB165
SM Byte
SMB131 to SMB135
SM136.0 to SM136.4
SM136.5
SM136.6
SM136.7
SM137.0 to SM137.2
SM137.3
SM137.4
SM137.5
SM137.6
SM137.7
SMD138
SMD142
SM146.0 to SM146.4
SM146.5
SM146.6
SM146.7
SM147.0
SM147.1
SM147.2
SM147.3
SM147.4
SM147.5
SM147.6
SM147.7
SMD148
SMD152
SM156.0 to SM156.4
Description
Reserved
Reserved
HSC3 current counting direction status bit: 1 = counting up
HSC3 current value equals preset value status bit: 1 = equal
HSC3 current value is greater than preset value status bit: 1 = greater than
Reserved
HSC3 direction control bit: 1 = count up
HSC3 update direction: 1 = update direction
HSC3 update preset value: 1 = write new preset value to HSC3 preset
HSC3 update current value: 1 = write new current value to HSC3 current
HSC3 enable bit: 1 = enable
HSC3 new current value
HSC3 new preset value
Reserved
HSC4 current counting direction status bit: 1 = counting up
HSC4 current value equals preset value status bit: 1 = equal
HSC4 current value is greater than preset value status bit: 1 = greater than
Active level control bit for Reset: 0 = Reset is active high, 1 = Reset is active low
Reserved
Counting rate selection for quadrature counters: 0 = 4x counting rate, 1 = 1x counting
rate
HSC4 direction control bit: 1 = count up
HSC4 update direction: 1 = update direction
HSC4 update preset value: 1 = write new preset value to HSC4 preset
HSC4 update current value: 1 = write new current value to HSC4 current
HSC4 enable bit: 1 = enable
HSC4 new current value
HSC4 new preset value
Reserved
Special Memory (SM) Bits
(see SMB30)
Appendix D
491